This entry includes a wide variety of situations that range from traditional bilateral boundary disputes to unilateral claims of one sort or another. Information regarding disputes over international terrestrial and maritime boundaries has been reviewed by the US Department of State. References to other situations involving borders or frontiers may also be included, such as resource disputes, geopolitical questions, or irredentist issues; however, inclusion does not necessarily constitute official acceptance or recognition by the US Government.

Topic: AfghanistanAfghanistan-China: None identified

Afghanistan-Iran: Afghan and Iranian commissioners have discussed boundary monument densification and resurvey; Iran protests Afghanistan's restricting flow of dammed Helmand River tributaries during drought

Afghanistan-Pakistan: Pakistan has built fences in some portions of its border with Afghanistan which remains open in some areas to terrorist and other illegal activities. Their alignments may not always be in conformance with Durand Line and original surveyed definitions of the boundary. Afghan, Coalition, and Pakistan military meet periodically to clarify the alignment of the boundary on the ground and on maps and since 2014 have met to discuss collaboration on the Taliban insurgency and counterterrorism efforts.

Afghanistan-Tajikistan: None identified

Afghanistan-Turkmenistan: None identified

Afghanistan-Uzbekistan: None identified. Boundary follows Amu Darya river as delimited in the Afghan-Soviet treaties and not by the river's current course. The boundary was delimited and possibly demarcated during Soviet times (pre-1991). No current negotiations between Afghanistan and Uzbekistan to redelimit the boundary have been identified. 

Russia remains concerned about the smuggling of poppy derivatives from Afghanistan through Central Asian countriesAfghanistan-China: None identified

Afghanistan-Iran: Afghan and Iranian commissioners have discussed boundary monument densification and resurvey; Iran protests Afghanistan's restricting flow of dammed Helmand River tributaries during drought

Afghanistan-Pakistan: Pakistan has built fences in some portions of its border with Afghanistan which remains open in some areas to terrorist and other illegal activities. Their alignments may not always be in conformance with Durand Line and original surveyed definitions of the boundary. Afghan, Coalition, and Pakistan military meet periodically to clarify the alignment of the boundary on the ground and on maps and since 2014 have met to discuss collaboration on the Taliban insurgency and counterterrorism efforts.

Afghanistan-Tajikistan: None identified

Afghanistan-Turkmenistan: None identified

Afghanistan-Uzbekistan: None identified. Boundary follows Amu Darya river as delimited in the Afghan-Soviet treaties and not by the river's current course. The boundary was delimited and possibly demarcated during Soviet times (pre-1991). No current negotiations between Afghanistan and Uzbekistan to redelimit the boundary have been identified. 

Russia remains concerned about the smuggling of poppy derivatives from Afghanistan through Central Asian countries

Topic: Albanianonenone

Topic: AlgeriaAlgeria-Morocco: the Algerian-Moroccan land border remains closed; Algeria's border with Morocco remains an irritant to bilateral relations, each nation accusing the other of harboring militants and arms smuggling; the National Liberation Front's (FLN) assertions of a claim to Chirac Pastures in southeastern Morocco remain a dormant dispute

Algeria-Libya: dormant dispute includes Libyan claims of about 32,000 sq km still reflected on its maps of southeastern Algeria

Algeria-Mali: none identified

Algeria-Mauritania: none identified

Algeria-Niger: none identified

Algeria-Tunisia: none identifiedAlgeria-Morocco: the Algerian-Moroccan land border remains closed; Algeria's border with Morocco remains an irritant to bilateral relations, each nation accusing the other of harboring militants and arms smuggling; the National Liberation Front's (FLN) assertions of a claim to Chirac Pastures in southeastern Morocco remain a dormant dispute

Algeria-Libya: dormant dispute includes Libyan claims of about 32,000 sq km still reflected on its maps of southeastern Algeria

Algeria-Mali: none identified

Algeria-Mauritania: none identified

Algeria-Niger: none identified

Algeria-Tunisia: none identified

Topic: American Samoanone identifiednone identified

Topic: AndorraAndorra-France: none identified

Andorra-Spain: none identifiedAndorra-France: none identified

Andorra-Spain: none identified

Topic: AngolaAngola-Democratic Republic of Congo (DRC): DRC accuses Angola of shifting monuments

Angola-Namibia: none identified

Angola-Republic of Congo: (Kabinda Exclave) none identified

Angola-Zambia: because the straight-line segments along the left bank (Zambian side) of the Cuando/Kwando River do not conform with the physical alignment of the unstable shoreline, Zambian residents in some areas have settled illegally on sections of shoreline that fall on the Angolan side of the boundaryAngola-Democratic Republic of Congo (DRC): DRC accuses Angola of shifting monuments

Angola-Namibia: none identified

Angola-Republic of Congo: (Kabinda Exclave) none identified

Angola-Zambia: because the straight-line segments along the left bank (Zambian side) of the Cuando/Kwando River do not conform with the physical alignment of the unstable shoreline, Zambian residents in some areas have settled illegally on sections of shoreline that fall on the Angolan side of the boundary

Topic: Anguillanone identifiednone identified

Topic: Antarcticathe Antarctic Treaty freezes, and most states do not recognize, the land and maritime territorial claims made by Argentina, Australia, Chile, France, New Zealand, Norway, and the UK (some overlapping) for three-fourths of the continent; the US and Russia reserve the right to make claimsthe Antarctic Treaty freezes, and most states do not recognize, the land and maritime territorial claims made by Argentina, Australia, Chile, France, New Zealand, Norway, and the UK (some overlapping) for three-fourths of the continent; the US and Russia reserve the right to make claims

Topic: Antigua and Barbudanone identifiednone identified

Topic: Arctic Oceanrecord summer melting of sea ice in the Arctic has renewed interest in maritime shipping lanes and sea floor exploration

Canada-US: dispute how to divide the Beaufort Sea and the status of the Northwest Passage but continue to work cooperatively to survey the Arctic continental shelf

Canada-Denmark (Greenland)-Norway: have made submissions to the UN Commission on the Limits of the Continental shelf (CLCS)

Norway-Russia: signed a comprehensive maritime boundary agreement in 2010; Russia has augmented its 2001 CLCS submissionrecord summer melting of sea ice in the Arctic has renewed interest in maritime shipping lanes and sea floor exploration

Canada-US: dispute how to divide the Beaufort Sea and the status of the Northwest Passage but continue to work cooperatively to survey the Arctic continental shelf

Canada-Denmark (Greenland)-Norway: have made submissions to the UN Commission on the Limits of the Continental shelf (CLCS)

Norway-Russia: signed a comprehensive maritime boundary agreement in 2010; Russia has augmented its 2001 CLCS submission

Topic: ArgentinaArgentina-Bolivia: Contraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of the border with Bolivia

Argentina-Brazil: Uncontested dispute between Brazil and Uruguay over Braziliera/Brasiliera Island in the Quarai/Cuareim River leaves the tripoint with Argentina in question.

Argentina-Chile: The joint boundary commission, established by Chile and Argentina in 2001 has yet to map and demarcate the delimited boundary in the inhospitable Andean Southern Ice Field (Campo de Hielo Sur).

Argentina-Paraguay: None identified

Argentina-Uruguay: In 2010, the ICJ ruled in favor of Uruguay's operation of two paper mills on the Uruguay River, which forms the border with Argentina; the two countries formed a joint pollution monitoring regime. Isla de Martín Garcia situated in the Rio de la Plata estuary is wholly within Uruguayan territorial waters but up to its low tide mark, the island is Argentinian territory.  The island is accorded unrestricted access rights.

Argentina-United Kingdom: Argentina continues to assert its claims to the UK-administered Falkland Islands (Islas Malvinas), South Georgia, and the South Sandwich Islands in its constitution, forcibly occupying the Falklands in 1982, but in 1995 agreed to no longer seek settlement by force; UK continues to reject Argentine requests for sovereignty talks.Argentina-Bolivia: Contraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of the border with Bolivia

Argentina-Brazil: Uncontested dispute between Brazil and Uruguay over Braziliera/Brasiliera Island in the Quarai/Cuareim River leaves the tripoint with Argentina in question.

Argentina-Chile: The joint boundary commission, established by Chile and Argentina in 2001 has yet to map and demarcate the delimited boundary in the inhospitable Andean Southern Ice Field (Campo de Hielo Sur).

Argentina-Paraguay: None identified

Argentina-Uruguay: In 2010, the ICJ ruled in favor of Uruguay's operation of two paper mills on the Uruguay River, which forms the border with Argentina; the two countries formed a joint pollution monitoring regime. Isla de Martín Garcia situated in the Rio de la Plata estuary is wholly within Uruguayan territorial waters but up to its low tide mark, the island is Argentinian territory.  The island is accorded unrestricted access rights.

Argentina-United Kingdom: Argentina continues to assert its claims to the UK-administered Falkland Islands (Islas Malvinas), South Georgia, and the South Sandwich Islands in its constitution, forcibly occupying the Falklands in 1982, but in 1995 agreed to no longer seek settlement by force; UK continues to reject Argentine requests for sovereignty talks.

Topic: Armenialocal border forces struggle to control the illegal transit of goods and people across the porous, undemarcated Armenian, Azerbaijani, and Georgian borders

Armenia-Azerbaijan: The dispute over the break-away Nagorno-Karabakh region and the Armenian military occupation of surrounding lands in Azerbaijan remains the primary focus of regional instability. Residents have evacuated the former Soviet-era small ethnic enclaves in Armenia and Azerbaijan.

Armenia-Georgia: Georgians restrict Armenian access into Samtse-Javakheti ethnic Armenian areas. Armenia has made no claims to the region.

Armenia-Iran: None identified

Armenia-Turkey: In 2009, Swiss mediators facilitated an accord reestablishing diplomatic ties between Armenia and Turkey, but neither side has ratified the agreement and the rapprochement effort has faltered, in part due to resistance from Azerbaijan. The border has been closed since 1993, and no diplomatic relations established after Armenian independence. In 2022, Turkey and Armenia have agreed to move forward with efforts to normalize relations.
Turkish authorities have complained that blasting from quarries in Armenia might be damaging the ruins of Ani, an ancient city on the high ridge overlooking the Arpaçay valley on the opposite shore. local border forces struggle to control the illegal transit of goods and people across the porous, undemarcated Armenian, Azerbaijani, and Georgian borders

Armenia-Azerbaijan: The dispute over the break-away Nagorno-Karabakh region and the Armenian military occupation of surrounding lands in Azerbaijan remains the primary focus of regional instability. Residents have evacuated the former Soviet-era small ethnic enclaves in Armenia and Azerbaijan.

Armenia-Georgia: Georgians restrict Armenian access into Samtse-Javakheti ethnic Armenian areas. Armenia has made no claims to the region.

Armenia-Iran: None identified

Armenia-Turkey: In 2009, Swiss mediators facilitated an accord reestablishing diplomatic ties between Armenia and Turkey, but neither side has ratified the agreement and the rapprochement effort has faltered, in part due to resistance from Azerbaijan. The border has been closed since 1993, and no diplomatic relations established after Armenian independence. In 2022, Turkey and Armenia have agreed to move forward with efforts to normalize relations.
Turkish authorities have complained that blasting from quarries in Armenia might be damaging the ruins of Ani, an ancient city on the high ridge overlooking the Arpaçay valley on the opposite shore. 

Topic: Arubanone identifiednone identified

Topic: Ashmore and Cartier IslandsAustralia-Indonesia:  Australia has closed parts of the Ashmore and Cartier reserve to Indonesian traditional fishing; Indonesian groups challenge Australia's claim to Ashmore ReefAustralia-Indonesia:  Australia has closed parts of the Ashmore and Cartier reserve to Indonesian traditional fishing; Indonesian groups challenge Australia's claim to Ashmore Reef

Topic: Atlantic Oceansome maritime disputes (see littoral states)some maritime disputes (see littoral states)

Topic: AustraliaAustralia-Indonesia (Maritime Boundary): All borders between Indonesia and Australia have been agreed upon bilaterally, but a 1997 treaty that would settle the last of their maritime and EEZ boundary has yet to be ratified by Indonesia's legislature. Indonesian groups challenge Australia's claim to Ashmore Reef. Australia closed parts of the Ashmore and Cartier reserve to Indonesian traditional fishing.

Australia-Timor-Leste (Maritime Boundary): In 2007, Australia and Timor-Leste agreed to a 50-year development zone and revenue sharing arrangement and deferred a maritime boundary.Australia-Indonesia (Maritime Boundary): All borders between Indonesia and Australia have been agreed upon bilaterally, but a 1997 treaty that would settle the last of their maritime and EEZ boundary has yet to be ratified by Indonesia's legislature. Indonesian groups challenge Australia's claim to Ashmore Reef. Australia closed parts of the Ashmore and Cartier reserve to Indonesian traditional fishing.

Australia-Timor-Leste (Maritime Boundary): In 2007, Australia and Timor-Leste agreed to a 50-year development zone and revenue sharing arrangement and deferred a maritime boundary.

Topic: Austrianone identifiednone identified

Topic: AzerbaijanLocal border forces struggle to control the illegal transit of goods and people across the porous, undemarcated Armenian, Azerbaijani, and Georgian borders.

Armenia-Azerbaijan: The dispute over the break-away Nagorno-Karabakh region and the Armenian military occupation of surrounding lands in Azerbaijan remains the primary focus of regional instability. Residents have evacuated the former Soviet-era small ethnic enclaves in Armenia and Azerbaijan.

Azerbaijan-Georgia: A joint boundary commission agrees on most of the alignment, leaving only small areas at certain crossing points in dispute.  Consequently, the two states have yet to agree on a delimitation or demarcation of their common boundary. One area of contention is where the international boundary should run through the 6th-13th Century David-Gareja monastery complex.

Azerbaijan-Iran: None identified

Azerbaijan-Russia: Russia complains of cross-border smuggling.

Azerbaijan-Turkey: None identified

Caspian Sea (Maritime Boundary): Azerbaijan, Kazakhstan, and Russia ratified the Caspian seabed delimitation treaties based on equidistance, while Iran continues to insist on a one-fifth slice of the sea. Bilateral talks continue with Turkmenistan on dividing the seabed and contested oilfields in the middle of the Caspian.Local border forces struggle to control the illegal transit of goods and people across the porous, undemarcated Armenian, Azerbaijani, and Georgian borders.

Armenia-Azerbaijan: The dispute over the break-away Nagorno-Karabakh region and the Armenian military occupation of surrounding lands in Azerbaijan remains the primary focus of regional instability. Residents have evacuated the former Soviet-era small ethnic enclaves in Armenia and Azerbaijan.

Azerbaijan-Georgia: A joint boundary commission agrees on most of the alignment, leaving only small areas at certain crossing points in dispute.  Consequently, the two states have yet to agree on a delimitation or demarcation of their common boundary. One area of contention is where the international boundary should run through the 6th-13th Century David-Gareja monastery complex.

Azerbaijan-Iran: None identified

Azerbaijan-Russia: Russia complains of cross-border smuggling.

Azerbaijan-Turkey: None identified

Caspian Sea (Maritime Boundary): Azerbaijan, Kazakhstan, and Russia ratified the Caspian seabed delimitation treaties based on equidistance, while Iran continues to insist on a one-fifth slice of the sea. Bilateral talks continue with Turkmenistan on dividing the seabed and contested oilfields in the middle of the Caspian.

Topic: Bahamas, TheThe Bahamas-US (Maritime Boundary): In declaring its archipelagic waters and 200 nm EEZ in 1993 legislation, The Bahamas did not delimit the outer limits of the EEZ; but in areas where EEZs overlap with neighbors, The Bahamas agreed to equidistance as a line of separation.  However, The Bahamas has yet to define maritime boundaries with any of its neighbors, including the United States, whose Florida coast lays about 70 nm from Grand Bahama Island.The Bahamas-US (Maritime Boundary): In declaring its archipelagic waters and 200 nm EEZ in 1993 legislation, The Bahamas did not delimit the outer limits of the EEZ; but in areas where EEZs overlap with neighbors, The Bahamas agreed to equidistance as a line of separation.  However, The Bahamas has yet to define maritime boundaries with any of its neighbors, including the United States, whose Florida coast lays about 70 nm from Grand Bahama Island.

Topic: Bahrainnone identifiednone identified

Topic: BangladeshBangladesh-Burma: Burmese border authorities are constructing a 200 km (124 mi) wire fence designed to deter illegal cross-border transit and tensions from the military build-up along border.

Bangladesh-India: Bangladesh referred its maritime boundary claims with Burma and India to the International Tribunal on the Law of the Sea; Indian Prime Minister Singh's September 2011 visit to Bangladesh resulted in the signing of a Protocol to the 1974 Land Boundary Agreement between India and Bangladesh, which had called for the settlement of longstanding boundary disputes over un-demarcated areas and the exchange of territorial enclaves, but which had never been implemented.Bangladesh-Burma: Burmese border authorities are constructing a 200 km (124 mi) wire fence designed to deter illegal cross-border transit and tensions from the military build-up along border.

Bangladesh-India: Bangladesh referred its maritime boundary claims with Burma and India to the International Tribunal on the Law of the Sea; Indian Prime Minister Singh's September 2011 visit to Bangladesh resulted in the signing of a Protocol to the 1974 Land Boundary Agreement between India and Bangladesh, which had called for the settlement of longstanding boundary disputes over un-demarcated areas and the exchange of territorial enclaves, but which had never been implemented.

Topic: BarbadosBarbados-Venezuela (Maritime Boundary): Barbados joins other Caribbean states and the United Kingdom to counter Venezuela's claim that Aves Island, a large sandbar with some vegetation, sustains human habitation or economic life, the criteria under the UN Convention on the Law of the Sea (UNCLOS), Article 121, which would permit Venezuela to extend its EEZ/continental shelf over a large portion of the eastern Caribbean Sea.  The dispute hampers hydrocarbon prospecting and creation of exploration blocks. 

Barbados-Trinidad and Tobago (Maritime Boundary): Barbados and Trinidad and Tobago abide by the April 2006 Permanent Court of Arbitration decision delimiting a maritime boundary and limiting catches of flying fish in Trinidad and Tobago's exclusive economic zone.Barbados-Venezuela (Maritime Boundary): Barbados joins other Caribbean states and the United Kingdom to counter Venezuela's claim that Aves Island, a large sandbar with some vegetation, sustains human habitation or economic life, the criteria under the UN Convention on the Law of the Sea (UNCLOS), Article 121, which would permit Venezuela to extend its EEZ/continental shelf over a large portion of the eastern Caribbean Sea.  The dispute hampers hydrocarbon prospecting and creation of exploration blocks. 

Barbados-Trinidad and Tobago (Maritime Boundary): Barbados and Trinidad and Tobago abide by the April 2006 Permanent Court of Arbitration decision delimiting a maritime boundary and limiting catches of flying fish in Trinidad and Tobago's exclusive economic zone.

Topic: BelarusBelarus-Latvia: Boundary demarcated with Latvia.

Belarus-Lithuania: Boundary demarcated with Lithuania.

Belarus-Poland: As a member state that forms part of the EU's external border, Poland has implemented strict Schengen border rules to restrict illegal immigration and trade along its border with Belarus.Belarus-Latvia: Boundary demarcated with Latvia.

Belarus-Lithuania: Boundary demarcated with Lithuania.

Belarus-Poland: As a member state that forms part of the EU's external border, Poland has implemented strict Schengen border rules to restrict illegal immigration and trade along its border with Belarus.

Topic: Belgiumnone identifiednone identified

Topic: BelizeBelize-Guatemala: Demarcated but insecure boundary due to Guatemala’s claims to more than half of Belizean territory.  Line of Adjacency operates in lieu of an international boundary to control influx of Guatemalan squatters onto Belizean territory. Smuggling, narcotics trafficking, and human trafficking for sexual exploitation and debt bondage are all problems. Belize lacks resources to detect and extradite impoverished Guatemalan peasants squatting in Belizean rain forests in the remote border areas.  Belize-Mexico: Belize and Mexico are working to solve minor border demarcation discrepancies arising from inaccuracies in the 1898 border treaty. Transshipment of illegal narcotics, smuggling, human trafficking, illegal immigration, and the growing of marijuana in very low population areas are all issues in the region today.Belize-Guatemala: Demarcated but insecure boundary due to Guatemala’s claims to more than half of Belizean territory.  Line of Adjacency operates in lieu of an international boundary to control influx of Guatemalan squatters onto Belizean territory. Smuggling, narcotics trafficking, and human trafficking for sexual exploitation and debt bondage are all problems. Belize lacks resources to detect and extradite impoverished Guatemalan peasants squatting in Belizean rain forests in the remote border areas. Belize-Mexico: Belize and Mexico are working to solve minor border demarcation discrepancies arising from inaccuracies in the 1898 border treaty. Transshipment of illegal narcotics, smuggling, human trafficking, illegal immigration, and the growing of marijuana in very low population areas are all issues in the region today.

Topic: BeninBenin-Burkina Faso: Benin retains a border dispute with Burkina Faso near the town of Koualau/Kourou.

Benin-Togo: Talks continue between Benin and Togo on funding the Adjarala hydroelectric dam on the Mona River.

Benin-Niger: The location of Benin-Niger-Nigeria tripoint is unresolved.Benin-Burkina Faso: Benin retains a border dispute with Burkina Faso near the town of Koualau/Kourou.

Benin-Togo: Talks continue between Benin and Togo on funding the Adjarala hydroelectric dam on the Mona River.

Benin-Niger: The location of Benin-Niger-Nigeria tripoint is unresolved.

Topic: Bermudanone identifiednone identified

Topic: BhutanBhutan-China: Lacking any treaty describing the boundary, Bhutan and China continue negotiations to establish a common boundary alignment to resolve territorial disputes arising from substantial cartographic discrepancies, the most contentious of which lie in Bhutan's west along China’s Chumbi salient.

Bhutan-India: none identifiedBhutan-China: Lacking any treaty describing the boundary, Bhutan and China continue negotiations to establish a common boundary alignment to resolve territorial disputes arising from substantial cartographic discrepancies, the most contentious of which lie in Bhutan's west along China’s Chumbi salient.

Bhutan-India: none identified

Topic: BoliviaContraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of its border regions with all of its neighbors (Argentina, Brazil, Chile, Paraguay, and Peru).

Bolivia-Chile: Despite tariff-free access to ports in southern Peru and northern Chile, Bolivia persists with its long-standing claims to regain sovereign access to the Pacific Ocean. 

Bolivia-Peru: Despite tariff-free access to ports in southern Peru and northern Chile, Bolivia persists with its long-standing claims to regain sovereign access to the Pacific Ocean. Smuggling of archaeological artifacts from Peru to Bolivia, illegal timber and narcotics smuggling, human trafficking, and falsified documents are current issues. 

Bolivia-Brazil: The Roboré Accord of March 29, 1958 placed the long-disputed Isla Suárez/Ilha de Guajará-Mirim, a fluvial island on the Río Mamoré, between the two towns of Guajará-Mirim (Brazil) and Guayaramerin (Bolivia), under Bolivian administration but did not resolve the sovereignty dispute

Bolivia-Argentina: Contraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of the border. 

Bolivia-Paraguay: On April 27, 2009, the president of Argentina hosted the presidents of Bolivia and Paraguay together with representatives of the fiver other guarantor states -- Brazil, Chile, Peru, the United States, and Uruguay -- to the signing for the Final Record of the Boundary Commission in execution of the 1938 Peace Treaty between Bolivia and Paraguay.Contraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of its border regions with all of its neighbors (Argentina, Brazil, Chile, Paraguay, and Peru).

Bolivia-Chile: Despite tariff-free access to ports in southern Peru and northern Chile, Bolivia persists with its long-standing claims to regain sovereign access to the Pacific Ocean. 

Bolivia-Peru: Despite tariff-free access to ports in southern Peru and northern Chile, Bolivia persists with its long-standing claims to regain sovereign access to the Pacific Ocean. Smuggling of archaeological artifacts from Peru to Bolivia, illegal timber and narcotics smuggling, human trafficking, and falsified documents are current issues. 

Bolivia-Brazil: The Roboré Accord of March 29, 1958 placed the long-disputed Isla Suárez/Ilha de Guajará-Mirim, a fluvial island on the Río Mamoré, between the two towns of Guajará-Mirim (Brazil) and Guayaramerin (Bolivia), under Bolivian administration but did not resolve the sovereignty dispute

Bolivia-Argentina: Contraband smuggling, human trafficking, and illegal narcotic trafficking are problems in the porous areas of the border. 

Bolivia-Paraguay: On April 27, 2009, the president of Argentina hosted the presidents of Bolivia and Paraguay together with representatives of the fiver other guarantor states -- Brazil, Chile, Peru, the United States, and Uruguay -- to the signing for the Final Record of the Boundary Commission in execution of the 1938 Peace Treaty between Bolivia and Paraguay.

Topic: Bosnia and HerzegovinaBosnia and Herzegovina-Serbia: Serbia delimited about half of the boundary with Bosnia and Herzegovina, but sections along the Drina River remain in dispute.

Bosnia and Herzegovina-Croatia: none identified

Bosnia and Herzegovina-Montenegro: none identifiedBosnia and Herzegovina-Serbia: Serbia delimited about half of the boundary with Bosnia and Herzegovina, but sections along the Drina River remain in dispute.

Bosnia and Herzegovina-Croatia: none identified

Bosnia and Herzegovina-Montenegro: none identified

Topic: Botswananone identifiednone identified

Topic: Bouvet Islandnone identifiednone identified

Topic: BrazilBrazil-Bolivia: The Roboré Accord of March 29, 1958 placed the long-disputed Isla Suárez/Ilha de Guajará-Mirim, a fluvial island on the Río Mamoré, between the two towns of Guajará-Mirim (Brazil) and Guayaramerin (Bolivia), under Bolivian administration but did not resolve the sovereignty dispute

Brazil-Colombia: Contraband smuggling (narcotics and arms), illegal migration, trafficking in animals, plants, lumber, illegal exploitation of mineral resources, Colombian (FARC) insurgent incursions in the area remain problematic issues.

Brazil-Uruguay: The uncontested boundary dispute between Brazil and Uruguay over over Arroyo de la Invernada triangle and sovereignty over Isla Brsillera leaves the tripoint with Argentina in question. Smuggling of firearms and narcotics continues to be an issue along the Uruguay-Brazil border.

Brazil-Venezuela: Colombian-organized illegal narcotics and paramilitary activities penetrate Brazil's border region with Venezuela.Brazil-Bolivia: The Roboré Accord of March 29, 1958 placed the long-disputed Isla Suárez/Ilha de Guajará-Mirim, a fluvial island on the Río Mamoré, between the two towns of Guajará-Mirim (Brazil) and Guayaramerin (Bolivia), under Bolivian administration but did not resolve the sovereignty dispute

Brazil-Colombia: Contraband smuggling (narcotics and arms), illegal migration, trafficking in animals, plants, lumber, illegal exploitation of mineral resources, Colombian (FARC) insurgent incursions in the area remain problematic issues.

Brazil-Uruguay: The uncontested boundary dispute between Brazil and Uruguay over over Arroyo de la Invernada triangle and sovereignty over Isla Brsillera leaves the tripoint with Argentina in question. Smuggling of firearms and narcotics continues to be an issue along the Uruguay-Brazil border.

Brazil-Venezuela: Colombian-organized illegal narcotics and paramilitary activities penetrate Brazil's border region with Venezuela.

Topic: British Indian Ocean TerritoryMauritius and Seychelles claim the Chagos Islands; negotiations between 1971 and 1982 resulted in the establishment of a trust fund by the British Government as compensation for the displaced islanders, known as Chagossians, who were evicted between 1967-73; in 2001, the former inhabitants of the archipelago were granted UK citizenship and the right of return; in 2006 and 2007, British court rulings invalidated the immigration policies contained in the 2004 BIOT Constitution Order that had excluded the islanders from the archipelago; in 2008, a House of Lords' decision overturned lower court rulings, once again denying the right of return to Chagossians; in addition, the UK created the world's largest marine protection area around the Chagos islands prohibiting the extraction of any natural resources thereinMauritius and Seychelles claim the Chagos Islands; negotiations between 1971 and 1982 resulted in the establishment of a trust fund by the British Government as compensation for the displaced islanders, known as Chagossians, who were evicted between 1967-73; in 2001, the former inhabitants of the archipelago were granted UK citizenship and the right of return; in 2006 and 2007, British court rulings invalidated the immigration policies contained in the 2004 BIOT Constitution Order that had excluded the islanders from the archipelago; in 2008, a House of Lords' decision overturned lower court rulings, once again denying the right of return to Chagossians; in addition, the UK created the world's largest marine protection area around the Chagos islands prohibiting the extraction of any natural resources therein

Topic: British Virgin Islandsnonenone

Topic: Bruneiper Letters of Exchange signed in 2009, Malaysia in 2010 ceded two hydrocarbon concession blocks to Brunei in exchange for Brunei's sultan dropping claims to the Limbang corridor, which divides Brunei; nonetheless, Brunei claims a maritime boundary extending as far as a median with Vietnam, thus asserting an implicit claim to Louisa Reefper Letters of Exchange signed in 2009, Malaysia in 2010 ceded two hydrocarbon concession blocks to Brunei in exchange for Brunei's sultan dropping claims to the Limbang corridor, which divides Brunei; nonetheless, Brunei claims a maritime boundary extending as far as a median with Vietnam, thus asserting an implicit claim to Louisa Reef

Topic: Bulgarianonenone

Topic: Burkina Fasoadding to illicit cross-border activities, Burkina Faso has issues concerning unresolved boundary alignments with its neighbors; demarcation is currently underway with Mali; the dispute with Niger was referred to the ICJ in 2010, and a dispute over several villages with Benin persists; Benin retains a border dispute with Burkina Faso around the town of Koualau/Kourouadding to illicit cross-border activities, Burkina Faso has issues concerning unresolved boundary alignments with its neighbors; demarcation is currently underway with Mali; the dispute with Niger was referred to the ICJ in 2010, and a dispute over several villages with Benin persists; Benin retains a border dispute with Burkina Faso around the town of Koualau/Kourou

Topic: Burmaover half of Burma's population consists of diverse ethnic groups who have substantial numbers of kin in neighboring countries; Bangladesh struggles to accommodate 912,000 Rohingya, Burmese Muslim minority from Rakhine State, living as refugees in Cox's Bazar; Burmese border authorities are constructing a 200 km (124 mi) wire fence designed to deter illegal cross-border transit and tensions from the military build-up along border with Bangladesh in 2010; Bangladesh referred its maritime boundary claims with Burma and India to the International Tribunal on the Law of the Sea; Burmese forces attempting to dig in to the largely autonomous Shan State to rout local militias tied to the drug trade, prompts local residents to periodically flee into neighboring Yunnan Province in China; fencing along the India-Burma international border at Manipur's Moreh town is in progress to check illegal drug trafficking and movement of militants; over 100,000 mostly Karen refugees and asylum seekers fleeing civil strife, political upheaval, and economic stagnation in Burma were living in remote camps in Thailand near the border as of May 2017over half of Burma's population consists of diverse ethnic groups who have substantial numbers of kin in neighboring countries; Bangladesh struggles to accommodate 912,000 Rohingya, Burmese Muslim minority from Rakhine State, living as refugees in Cox's Bazar; Burmese border authorities are constructing a 200 km (124 mi) wire fence designed to deter illegal cross-border transit and tensions from the military build-up along border with Bangladesh in 2010; Bangladesh referred its maritime boundary claims with Burma and India to the International Tribunal on the Law of the Sea; Burmese forces attempting to dig in to the largely autonomous Shan State to rout local militias tied to the drug trade, prompts local residents to periodically flee into neighboring Yunnan Province in China; fencing along the India-Burma international border at Manipur's Moreh town is in progress to check illegal drug trafficking and movement of militants; over 100,000 mostly Karen refugees and asylum seekers fleeing civil strife, political upheaval, and economic stagnation in Burma were living in remote camps in Thailand near the border as of May 2017

Topic: Burundicross-border conflicts persist among Tutsi, Hutu, other ethnic groups, associated political rebels, armed gangs, and various government forces in the Great Lakes region

Burundi-Rwanda: Burundi's Ngozi province and Rwanda's Butare province dispute the two-kilometer-square hilly farmed area of Sabanerwa in the Rukurazi Valley where the Akanyaru/Kanyaru River shifted its course southward after heavy rains in 1965 around Kibinga Hill in Rwanda's Butare Province


cross-border conflicts persist among Tutsi, Hutu, other ethnic groups, associated political rebels, armed gangs, and various government forces in the Great Lakes region

Burundi-Rwanda: Burundi's Ngozi province and Rwanda's Butare province dispute the two-kilometer-square hilly farmed area of Sabanerwa in the Rukurazi Valley where the Akanyaru/Kanyaru River shifted its course southward after heavy rains in 1965 around Kibinga Hill in Rwanda's Butare Province




Topic: Cabo Verdenonenone

Topic: CambodiaCambodia-Laos: Cambodia is concerned that Laos' extensive upstream dam construction will affect Cambodian waters downstream Cambodia-Thailand: Cambodia and Thailand have agreed to maintain peace along the border regardless of the decision of the International Court of Justice (ICJ) over territorial dispute near Cambodia's Preah Vihear Temple; the ICJ decision of 11 November 2013 determined that Cambodia had sovereignty over the whole territory of the promontory of Preah Vihear; the border disputes do not involve large amounts of territory, and most of the issues were settled by the Nov. 11, 2013 ICJ ruling Cambodia-Vietnam: issues include casinos built in Cambodia near the border (gambling and prostitution); narcotics (criminals, crime, and abuse); trafficking of women and children, petrol smuggling into Cambodia from Vietnam, illegal logging, and illegal migration; a positive development is the special economic Zone in Bavet, Svay Rieng Province, Cambodia that is being developed by the Manhattan (Svay Rieng) International Group of TaiwanCambodia-Laos: Cambodia is concerned that Laos' extensive upstream dam construction will affect Cambodian waters downstreamCambodia-Thailand: Cambodia and Thailand have agreed to maintain peace along the border regardless of the decision of the International Court of Justice (ICJ) over territorial dispute near Cambodia's Preah Vihear Temple; the ICJ decision of 11 November 2013 determined that Cambodia had sovereignty over the whole territory of the promontory of Preah Vihear; the border disputes do not involve large amounts of territory, and most of the issues were settled by the Nov. 11, 2013 ICJ rulingCambodia-Vietnam: issues include casinos built in Cambodia near the border (gambling and prostitution); narcotics (criminals, crime, and abuse); trafficking of women and children, petrol smuggling into Cambodia from Vietnam, illegal logging, and illegal migration; a positive development is the special economic Zone in Bavet, Svay Rieng Province, Cambodia that is being developed by the Manhattan (Svay Rieng) International Group of Taiwan

Topic: CameroonJoint Border Commission with Nigeria reviewed 2002 ICJ ruling on the entire boundary and bilaterally resolved differences, including June 2006 Greentree Agreement that immediately ceded sovereignty of the Bakassi Peninsula to Cameroon with a full phase-out of Nigerian control and patriation of residents in 2008; Cameroon and Nigeria agreed on maritime delimitation in March 2008; sovereignty dispute between Equatorial Guinea and Cameroon over an island at the mouth of the Ntem River; only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty, which also includes the Chad-Niger and Niger-Nigeria boundariesJoint Border Commission with Nigeria reviewed 2002 ICJ ruling on the entire boundary and bilaterally resolved differences, including June 2006 Greentree Agreement that immediately ceded sovereignty of the Bakassi Peninsula to Cameroon with a full phase-out of Nigerian control and patriation of residents in 2008; Cameroon and Nigeria agreed on maritime delimitation in March 2008; sovereignty dispute between Equatorial Guinea and Cameroon over an island at the mouth of the Ntem River; only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty, which also includes the Chad-Niger and Niger-Nigeria boundaries

Topic: Canadamanaged maritime boundary disputes with the US at Dixon Entrance, Beaufort Sea, Strait of Juan de Fuca, and the Gulf of Maine, including the disputed Machias Seal Island and North Rock; Canada and the United States dispute how to divide the Beaufort Sea and the status of the Northwest Passage but continue to work cooperatively to survey the Arctic continental shelf; US works closely with Canada to intensify security measures for monitoring and controlling legal and illegal movement of people, transport, and commodities across the international border; sovereignty dispute with Denmark over Hans Island in the Kennedy Channel between Ellesmere Island and Greenland; commencing the collection of technical evidence for submission to the Commission on the Limits of the Continental Shelf in support of claims for continental shelf beyond 200 nm from its declared baselines in the Arctic, as stipulated in Article 76, paragraph 8, of the UN Convention on the Law of the Seamanaged maritime boundary disputes with the US at Dixon Entrance, Beaufort Sea, Strait of Juan de Fuca, and the Gulf of Maine, including the disputed Machias Seal Island and North Rock; Canada and the United States dispute how to divide the Beaufort Sea and the status of the Northwest Passage but continue to work cooperatively to survey the Arctic continental shelf; US works closely with Canada to intensify security measures for monitoring and controlling legal and illegal movement of people, transport, and commodities across the international border; sovereignty dispute with Denmark over Hans Island in the Kennedy Channel between Ellesmere Island and Greenland; commencing the collection of technical evidence for submission to the Commission on the Limits of the Continental Shelf in support of claims for continental shelf beyond 200 nm from its declared baselines in the Arctic, as stipulated in Article 76, paragraph 8, of the UN Convention on the Law of the Sea

Topic: Cayman Islandsnonenone

Topic: Central African RepublicCentral African Republic-South Sudan: periodic violent skirmishes persist among related pastoral populations along the border with the Central African Republic over water and grazing rights Central African Republic-Sudan: periodic violent skirmishes persist among related pastoral populations along the border with the Central African Republic over water and grazing rightsCentral African Republic-South Sudan: periodic violent skirmishes persist among related pastoral populations along the border with the Central African Republic over water and grazing rightsCentral African Republic-Sudan: periodic violent skirmishes persist among related pastoral populations along the border with the Central African Republic over water and grazing rights

Topic: Chadsince 2003, ad hoc armed militia groups and the Sudanese military have driven hundreds of thousands of Darfur residents into Chad; Chad wishes to be a helpful mediator in resolving the Darfur conflict, and in 2010 established a joint border monitoring force with Sudan, which has helped to reduce cross-border banditry and violence; only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty, which also includes the Chad-Niger and Niger-Nigeria boundariessince 2003, ad hoc armed militia groups and the Sudanese military have driven hundreds of thousands of Darfur residents into Chad; Chad wishes to be a helpful mediator in resolving the Darfur conflict, and in 2010 established a joint border monitoring force with Sudan, which has helped to reduce cross-border banditry and violence; only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty, which also includes the Chad-Niger and Niger-Nigeria boundaries

Topic: ChileChile and Peru rebuff Bolivia's reactivated claim to restore the Atacama corridor, ceded to Chile in 1884, but Chile has offered instead unrestricted but not sovereign maritime access through Chile to Bolivian natural gas; Chile rejects Peru's unilateral legislation to change its latitudinal maritime boundary with Chile to an equidistance line with a southwestern axis favoring Peru; in October 2007, Peru took its maritime complaint with Chile to the ICJ; territorial claim in Antarctica (Chilean Antarctic Territory) partially overlaps Argentine and British claims; the joint boundary commission, established by Chile and Argentina in 2001, has yet to map and demarcate the delimited boundary in the inhospitable Andean Southern Ice Field (Campo de Hielo Sur)Chile and Peru rebuff Bolivia's reactivated claim to restore the Atacama corridor, ceded to Chile in 1884, but Chile has offered instead unrestricted but not sovereign maritime access through Chile to Bolivian natural gas; Chile rejects Peru's unilateral legislation to change its latitudinal maritime boundary with Chile to an equidistance line with a southwestern axis favoring Peru; in October 2007, Peru took its maritime complaint with Chile to the ICJ; territorial claim in Antarctica (Chilean Antarctic Territory) partially overlaps Argentine and British claims; the joint boundary commission, established by Chile and Argentina in 2001, has yet to map and demarcate the delimited boundary in the inhospitable Andean Southern Ice Field (Campo de Hielo Sur)

Topic: ChinaChina and India continue their security and foreign policy dialogue started in 2005 related to a number of boundary disputes across the 2,000 mile shared border; India does not recognize Pakistan's 1964 ceding to China of the Aksai Chin, a territory designated as part of the princely state of Kashmir by the British Survey of India in 1865; China claims most of the Indian state Arunachal Pradesh to the base of the Himalayas, but the US recognizes the state of Arunachal Pradesh as Indian territory; Bhutan and China continue negotiations to establish a common boundary alignment to resolve territorial disputes arising from substantial cartographic discrepancies, the most contentious of which lie in Bhutan's west along China's Chumbi salient; Chinese maps show an international boundary symbol (the so-called “nine-dash line”) off the coasts of the littoral states of the South China Sea, where China has interrupted Vietnamese hydrocarbon exploration; China asserts sovereignty over Scarborough Reef along with the Philippines and Taiwan, and over the Spratly Islands together with Malaysia, the Philippines, Taiwan, Vietnam, and Brunei; the 2002 Declaration on the Conduct of Parties in the South China Sea eased tensions in the Spratlys, and in 2017 China and ASEAN began confidential negotiations for an updated Code of Conduct for the South China Sea designed not to settle territorial disputes but establish rules and norms in the region; this still is not the legally binding code of conduct sought by some parties; Vietnam and China continue to expand construction of facilities in the Spratlys and in early 2018 China began deploying advanced military systems to disputed Spratly outposts; China occupies some of the Paracel Islands also claimed by Vietnam and Taiwan; the Japanese-administered Senkaku Islands are also claimed by China and Taiwan; certain islands in the Yalu and Tumen Rivers are in dispute with North Korea; North Korea and China seek to stem illegal migration to China by North Koreans, fleeing privation and oppression; China and Russia have demarcated the once disputed islands at the Amur and Ussuri confluence and in the Argun River in accordance with their 2004 Agreement; China and Tajikistan have begun demarcating the revised boundary agreed to in the delimitation of 2002; the decade-long demarcation of the China-Vietnam land boundary was completed in 2009; citing environmental, cultural, and social concerns, China has reconsidered construction of 13 dams on the Salween River, but energy-starved Burma, with backing from Thailand, continues to consider building five hydro-electric dams downstream despite regional and international protestsChina and India continue their security and foreign policy dialogue started in 2005 related to a number of boundary disputes across the 2,000 mile shared border; India does not recognize Pakistan's 1964 ceding to China of the Aksai Chin, a territory designated as part of the princely state of Kashmir by the British Survey of India in 1865; China claims most of the Indian state Arunachal Pradesh to the base of the Himalayas, but the US recognizes the state of Arunachal Pradesh as Indian territory; Bhutan and China continue negotiations to establish a common boundary alignment to resolve territorial disputes arising from substantial cartographic discrepancies, the most contentious of which lie in Bhutan's west along China's Chumbi salient; Chinese maps show an international boundary symbol (the so-called “nine-dash line”) off the coasts of the littoral states of the South China Sea, where China has interrupted Vietnamese hydrocarbon exploration; China asserts sovereignty over Scarborough Reef along with the Philippines and Taiwan, and over the Spratly Islands together with Malaysia, the Philippines, Taiwan, Vietnam, and Brunei; the 2002 Declaration on the Conduct of Parties in the South China Sea eased tensions in the Spratlys, and in 2017 China and ASEAN began confidential negotiations for an updated Code of Conduct for the South China Sea designed not to settle territorial disputes but establish rules and norms in the region; this still is not the legally binding code of conduct sought by some parties; Vietnam and China continue to expand construction of facilities in the Spratlys and in early 2018 China began deploying advanced military systems to disputed Spratly outposts; China occupies some of the Paracel Islands also claimed by Vietnam and Taiwan; the Japanese-administered Senkaku Islands are also claimed by China and Taiwan; certain islands in the Yalu and Tumen Rivers are in dispute with North Korea; North Korea and China seek to stem illegal migration to China by North Koreans, fleeing privation and oppression; China and Russia have demarcated the once disputed islands at the Amur and Ussuri confluence and in the Argun River in accordance with their 2004 Agreement; China and Tajikistan have begun demarcating the revised boundary agreed to in the delimitation of 2002; the decade-long demarcation of the China-Vietnam land boundary was completed in 2009; citing environmental, cultural, and social concerns, China has reconsidered construction of 13 dams on the Salween River, but energy-starved Burma, with backing from Thailand, continues to consider building five hydro-electric dams downstream despite regional and international protests

Topic: Christmas Islandnonenone

Topic: Clipperton Islandnonenone

Topic: Cocos (Keeling) Islandsnonenone

Topic: Colombiain December 2007, ICJ allocated San Andres, Providencia, and Santa Catalina islands to Colombia under 1928 Treaty but did not rule on 82 degrees W meridian as maritime boundary with Nicaragua; managed dispute with Venezuela over maritime boundary and Venezuelan-administered Los Monjes Islands near the Gulf of Venezuela; Colombian-organized illegal narcotics, guerrilla, and paramilitary activities penetrate all neighboring borders and have caused Colombian citizens to flee mostly into neighboring countries; Colombia, Honduras, Nicaragua, Jamaica, and the US assert various claims to Bajo Nuevo and Serranilla Bankin December 2007, ICJ allocated San Andres, Providencia, and Santa Catalina islands to Colombia under 1928 Treaty but did not rule on 82 degrees W meridian as maritime boundary with Nicaragua; managed dispute with Venezuela over maritime boundary and Venezuelan-administered Los Monjes Islands near the Gulf of Venezuela; Colombian-organized illegal narcotics, guerrilla, and paramilitary activities penetrate all neighboring borders and have caused Colombian citizens to flee mostly into neighboring countries; Colombia, Honduras, Nicaragua, Jamaica, and the US assert various claims to Bajo Nuevo and Serranilla Bank

Topic: Comorosclaims French-administered Mayotte and challenges France's and Madagascar's claims to Banc du Geyser, a drying reef in the Mozambique Channel; in May 2008, African Union forces assisted the Comoros military recapture Anjouan Island from rebels who seized it in 2001claims French-administered Mayotte and challenges France's and Madagascar's claims to Banc du Geyser, a drying reef in the Mozambique Channel; in May 2008, African Union forces assisted the Comoros military recapture Anjouan Island from rebels who seized it in 2001

Topic: Congo, Democratic Republic of theheads of the Great Lakes states and UN pledged in 2004 to abate tribal, rebel, and militia fighting in the region, including northeast Congo, where the UN Organization Mission in the Democratic Republic of the Congo (MONUC), organized in 1999, maintains over 16,500 uniformed peacekeepers

Democratic Republic of Congo(DRC)-Republic of the Congo: the location of the boundary in the broad Congo River is indefinite except in the Pool Malebo/Stanley Pool area

Democratic Republic of Congo(DRC)-Uganda: Uganda rejects the DRC claim to Margherita Peak in the Rwenzori mountains and considers it a boundary divide; there is tension and violence on Lake Albert over prospective oil reserves at the mouth of the Semliki River

Democratic Republic of Congo(DRC)-Zambia: boundary commission continues discussions over Congolese-administered triangle of land on the right bank of the Lunkinda River claimed by Zambia near the DRC village of Pweto

Democratic Republic of Congo(DRC)-Angola: DRC accuses Angola of shifting monumentsheads of the Great Lakes states and UN pledged in 2004 to abate tribal, rebel, and militia fighting in the region, including northeast Congo, where the UN Organization Mission in the Democratic Republic of the Congo (MONUC), organized in 1999, maintains over 16,500 uniformed peacekeepers

Democratic Republic of Congo(DRC)-Republic of the Congo: the location of the boundary in the broad Congo River is indefinite except in the Pool Malebo/Stanley Pool area

Democratic Republic of Congo(DRC)-Uganda: Uganda rejects the DRC claim to Margherita Peak in the Rwenzori mountains and considers it a boundary divide; there is tension and violence on Lake Albert over prospective oil reserves at the mouth of the Semliki River

Democratic Republic of Congo(DRC)-Zambia: boundary commission continues discussions over Congolese-administered triangle of land on the right bank of the Lunkinda River claimed by Zambia near the DRC village of Pweto

Democratic Republic of Congo(DRC)-Angola: DRC accuses Angola of shifting monuments

Topic: Congo, Republic of theRepublic of the Congo-Democratic Republic of Congo(DRC): the location of the boundary in the broad Congo River is indefinite except in the Pool Malebo/Stanley Pool area

Republic of the Congo-Angola: (Kabinda Exclave) None identifiedRepublic of the Congo-Democratic Republic of Congo(DRC): the location of the boundary in the broad Congo River is indefinite except in the Pool Malebo/Stanley Pool area

Republic of the Congo-Angola: (Kabinda Exclave) None identified

Topic: Cook Islandsnonenone

Topic: Coral Sea Islandsnonenone

Topic: Costa RicaCosta Rica and Nicaragua regularly file border dispute cases over the delimitations of the San Juan River and the northern tip of Calero Island to the International Court of Justice (ICJ); in 2009, the ICJ ruled that Costa Rican vessels carrying out police activities could not use the river, but official Costa Rican vessels providing essential services to riverside inhabitants and Costa Rican tourists could travel freely on the river; in 2011, the ICJ provisionally ruled that both countries must remove personnel from the disputed area; in 2013, the ICJ rejected Nicaragua's 2012 suit to halt Costa Rica's construction of a highway paralleling the river on the grounds of irreparable environmental damage; in 2013, the ICJ, regarding the disputed territory, ordered that Nicaragua should refrain from dredging or canal construction and refill and repair damage caused by trenches connecting the river to the Caribbean and upheld its 2010 ruling that Nicaragua must remove all personnel; in early 2014, Costa Rica brought Nicaragua to the ICJ over offshore oil concessions in the disputed regionCosta Rica and Nicaragua regularly file border dispute cases over the delimitations of the San Juan River and the northern tip of Calero Island to the International Court of Justice (ICJ); in 2009, the ICJ ruled that Costa Rican vessels carrying out police activities could not use the river, but official Costa Rican vessels providing essential services to riverside inhabitants and Costa Rican tourists could travel freely on the river; in 2011, the ICJ provisionally ruled that both countries must remove personnel from the disputed area; in 2013, the ICJ rejected Nicaragua's 2012 suit to halt Costa Rica's construction of a highway paralleling the river on the grounds of irreparable environmental damage; in 2013, the ICJ, regarding the disputed territory, ordered that Nicaragua should refrain from dredging or canal construction and refill and repair damage caused by trenches connecting the river to the Caribbean and upheld its 2010 ruling that Nicaragua must remove all personnel; in early 2014, Costa Rica brought Nicaragua to the ICJ over offshore oil concessions in the disputed region

Topic: Cote d'Ivoiredisputed maritime border between Cote d'Ivoire and Ghanadisputed maritime border between Cote d'Ivoire and Ghana

Topic: Croatiadispute remains with Bosnia and Herzegovina over several small sections of the boundary related to maritime access that hinders ratification of the 1999 border agreement; since the breakup of Yugoslavia in the early 1990s, Croatia and Slovenia have each claimed sovereignty over Piranski Bay and four villages, and Slovenia has objected to Croatia's claim of an exclusive economic zone in the Adriatic Sea; in 2009, however Croatia and Slovenia signed a binding international arbitration agreement to define their disputed land and maritime borders, which led to Slovenia lifting its objections to Croatia joining the EU; Slovenia continues to impose a hard border Schengen regime with Croatia, which joined the EU in 2013 but has not yet fulfilled Schengen requirementsdispute remains with Bosnia and Herzegovina over several small sections of the boundary related to maritime access that hinders ratification of the 1999 border agreement; since the breakup of Yugoslavia in the early 1990s, Croatia and Slovenia have each claimed sovereignty over Piranski Bay and four villages, and Slovenia has objected to Croatia's claim of an exclusive economic zone in the Adriatic Sea; in 2009, however Croatia and Slovenia signed a binding international arbitration agreement to define their disputed land and maritime borders, which led to Slovenia lifting its objections to Croatia joining the EU; Slovenia continues to impose a hard border Schengen regime with Croatia, which joined the EU in 2013 but has not yet fulfilled Schengen requirements

Topic: CubaUS Naval Base at Guantanamo Bay is leased to US and only mutual agreement or US abandonment of the facility can terminate the leaseUS Naval Base at Guantanamo Bay is leased to US and only mutual agreement or US abandonment of the facility can terminate the lease

Topic: Cyprushostilities in 1974 divided the island into two de facto autonomous entities, the internationally recognized Cypriot Government and a Turkish-Cypriot community (north Cyprus); the 1,000-strong UN Peacekeeping Force in Cyprus (UNFICYP) has served in Cyprus since 1964 and maintains the buffer zone between north and south; on 1 May 2004, Cyprus entered the EU still divided, with the EU's body of legislation and standards (acquis communitaire) suspended in the north; Turkey protests Cypriot Government creating hydrocarbon blocks and maritime boundary with Lebanon in March 2007hostilities in 1974 divided the island into two de facto autonomous entities, the internationally recognized Cypriot Government and a Turkish-Cypriot community (north Cyprus); the 1,000-strong UN Peacekeeping Force in Cyprus (UNFICYP) has served in Cyprus since 1964 and maintains the buffer zone between north and south; on 1 May 2004, Cyprus entered the EU still divided, with the EU's body of legislation and standards (acquis communitaire) suspended in the north; Turkey protests Cypriot Government creating hydrocarbon blocks and maritime boundary with Lebanon in March 2007

Topic: Czechianonenone

Topic: DenmarkIceland, the UK, and Ireland dispute Denmark's claim that the Faroe Islands' continental shelf extends beyond 200 nm; sovereignty dispute with Canada over Hans Island in the Kennedy Channel between Ellesmere Island and Greenland; Denmark (Greenland) and Norway have made submissions to the Commission on the Limits of the Continental Shelf (CLCS) and Russia is collecting additional data to augment its 2001 CLCS submissionIceland, the UK, and Ireland dispute Denmark's claim that the Faroe Islands' continental shelf extends beyond 200 nm; sovereignty dispute with Canada over Hans Island in the Kennedy Channel between Ellesmere Island and Greenland; Denmark (Greenland) and Norway have made submissions to the Commission on the Limits of the Continental Shelf (CLCS) and Russia is collecting additional data to augment its 2001 CLCS submission

Topic: DjiboutiDjibouti maintains economic ties and border accords with "Somaliland" leadership while maintaining some political ties to various factions in Somalia; Kuwait is chief investor in the 2008 restoration and upgrade of the Ethiopian-Djibouti rail link; in 2008, Eritrean troops moved across the border on Ras Doumera peninsula and occupied Doumera Island with undefined sovereignty in the Red SeaDjibouti maintains economic ties and border accords with "Somaliland" leadership while maintaining some political ties to various factions in Somalia; Kuwait is chief investor in the 2008 restoration and upgrade of the Ethiopian-Djibouti rail link; in 2008, Eritrean troops moved across the border on Ras Doumera peninsula and occupied Doumera Island with undefined sovereignty in the Red Sea

Topic: DominicaDominica is the only Caribbean state to challenge Venezuela's sovereignty claim over Aves Island and joins the other island nations in challenging whether the feature sustains human habitation, a criterion under the UN Convention on the Law of the Sea, which permits Venezuela to extend its EEZ and continental shelf claims over a large portion of the eastern Caribbean SeaDominica is the only Caribbean state to challenge Venezuela's sovereignty claim over Aves Island and joins the other island nations in challenging whether the feature sustains human habitation, a criterion under the UN Convention on the Law of the Sea, which permits Venezuela to extend its EEZ and continental shelf claims over a large portion of the eastern Caribbean Sea

Topic: Dominican RepublicHaitian migrants cross the porous border into the Dominican Republic to find work; illegal migrants from the Dominican Republic cross the Mona Passage each year to Puerto Rico to find better workHaitian migrants cross the porous border into the Dominican Republic to find work; illegal migrants from the Dominican Republic cross the Mona Passage each year to Puerto Rico to find better work

Topic: Ecuadororganized illegal narcotics operations in Colombia penetrate across Ecuador's shared borderorganized illegal narcotics operations in Colombia penetrate across Ecuador's shared border

Topic: EgyptSudan claims but Egypt de facto administers security and economic development of Halaib region north of the 22nd parallel boundary; Egypt no longer shows its administration of the Bir Tawil trapezoid in Sudan on its maps; Gazan breaches in the security wall with Egypt in January 2008 highlight difficulties in monitoring the Sinai borderSudan claims but Egypt de facto administers security and economic development of Halaib region north of the 22nd parallel boundary; Egypt no longer shows its administration of the Bir Tawil trapezoid in Sudan on its maps; Gazan breaches in the security wall with Egypt in January 2008 highlight difficulties in monitoring the Sinai border

Topic: El SalvadorInternational Court of Justice (ICJ) ruled on the delimitation of "bolsones" (disputed areas) along the El Salvador-Honduras boundary, in 1992, with final agreement by the parties in 2006 after an Organization of American States survey and a further ICJ ruling in 2003; the 1992 ICJ ruling advised a tripartite resolution to a maritime boundary in the Gulf of Fonseca advocating Honduran access to the Pacific; El Salvador continues to claim tiny Conejo Island, not identified in the ICJ decision, off Honduras in the Gulf of FonsecaInternational Court of Justice (ICJ) ruled on the delimitation of "bolsones" (disputed areas) along the El Salvador-Honduras boundary, in 1992, with final agreement by the parties in 2006 after an Organization of American States survey and a further ICJ ruling in 2003; the 1992 ICJ ruling advised a tripartite resolution to a maritime boundary in the Gulf of Fonseca advocating Honduran access to the Pacific; El Salvador continues to claim tiny Conejo Island, not identified in the ICJ decision, off Honduras in the Gulf of Fonseca

Topic: Equatorial Guineain 2002, ICJ ruled on an equidistance settlement of Cameroon-Equatorial Guinea-Nigeria maritime boundary in the Gulf of Guinea, but a dispute between Equatorial Guinea and Cameroon over an island at the mouth of the Ntem River and imprecisely defined maritime coordinates in the ICJ decision delayed final delimitation; UN urged Equatorial Guinea and Gabon to resolve the sovereignty dispute over Gabon-occupied Mbane and lesser islands and to create a maritime boundary in the hydrocarbon-rich Corisco Bayin 2002, ICJ ruled on an equidistance settlement of Cameroon-Equatorial Guinea-Nigeria maritime boundary in the Gulf of Guinea, but a dispute between Equatorial Guinea and Cameroon over an island at the mouth of the Ntem River and imprecisely defined maritime coordinates in the ICJ decision delayed final delimitation; UN urged Equatorial Guinea and Gabon to resolve the sovereignty dispute over Gabon-occupied Mbane and lesser islands and to create a maritime boundary in the hydrocarbon-rich Corisco Bay

Topic: EritreaEritrea and Ethiopia agreed to abide by 2002 Ethiopia-Eritrea Boundary Commission's (EEBC) delimitation decision, but neither party responded to the revised line detailed in the November 2006 EEBC Demarcation Statement; Sudan accuses Eritrea of supporting eastern Sudanese rebel groups; in 2008, Eritrean troops moved across the border on Ras Doumera peninsula and occupied Doumera Island with undefined sovereignty in the Red SeaEritrea and Ethiopia agreed to abide by 2002 Ethiopia-Eritrea Boundary Commission's (EEBC) delimitation decision, but neither party responded to the revised line detailed in the November 2006 EEBC Demarcation Statement; Sudan accuses Eritrea of supporting eastern Sudanese rebel groups; in 2008, Eritrean troops moved across the border on Ras Doumera peninsula and occupied Doumera Island with undefined sovereignty in the Red Sea

Topic: EstoniaRussia and Estonia in May 2005 signed a technical border agreement, but Russia in June 2005 recalled its signature after the Estonian parliament added to its domestic ratification act a historical preamble referencing the Soviet occupation and Estonia's pre-war borders under the 1920 Treaty of Tartu; Russia contends that the preamble allows Estonia to make territorial claims on Russia in the future, while Estonian officials deny that the preamble has any legal impact on the treaty text; Russia demands better treatment of the Russian-speaking population in Estonia; as a member state that forms part of the EU's external border, Estonia implements strict Schengen border rules with RussiaRussia and Estonia in May 2005 signed a technical border agreement, but Russia in June 2005 recalled its signature after the Estonian parliament added to its domestic ratification act a historical preamble referencing the Soviet occupation and Estonia's pre-war borders under the 1920 Treaty of Tartu; Russia contends that the preamble allows Estonia to make territorial claims on Russia in the future, while Estonian officials deny that the preamble has any legal impact on the treaty text; Russia demands better treatment of the Russian-speaking population in Estonia; as a member state that forms part of the EU's external border, Estonia implements strict Schengen border rules with Russia

Topic: Eswatiniin 2006, Swati king advocated resorting to ICJ to claim parts of Mpumalanga and KwaZulu-Natal from South Africain 2006, Swati king advocated resorting to ICJ to claim parts of Mpumalanga and KwaZulu-Natal from South Africa

Topic: EthiopiaEthiopia-Eritrea: Eritrea and Ethiopia agreed to abide by the 2002 Eritrea-Ethiopia Boundary Commission's (EEBC) delimitation decision, but neither party responded to the revised line detailed in the November 2006 EEBC Demarcation Statement 

Ethiopia-Somalia: While border clashes continue in the al-Fashqa (Fashaga) area,  the US views the 1902 boundary treaty between Ethiopia and Sudan as being in force; the undemarcated former British administrative line has little meaning as a political separation to rival clans within Ethiopia's Ogaden and southern Somalia's Oromo region; Ethiopian forces invaded southern Somalia and routed Islamist courts from Mogadishu in January 2007; "Somaliland" secessionists provide port facilities in Berbera and trade ties to landlocked Ethiopia; 

Ethiopia-Sudan: Ethiopia's construction of a large dam (the Grand Ethiopian Renaissance Dam) on the Blue Nile since 2011 has become a focal point of relations with Egypt and Sudan; as of 2020, four years of three-way talks between the three capitals over operating the dam and filling its reservoir had made little progress; Ethiopia began filling the dam in July 2020; civil unrest in eastern Sudan has hampered efforts to demarcate the porous boundary with EthiopiaEthiopia-Eritrea: Eritrea and Ethiopia agreed to abide by the 2002 Eritrea-Ethiopia Boundary Commission's (EEBC) delimitation decision, but neither party responded to the revised line detailed in the November 2006 EEBC Demarcation Statement 

Ethiopia-Somalia: While border clashes continue in the al-Fashqa (Fashaga) area,  the US views the 1902 boundary treaty between Ethiopia and Sudan as being in force; the undemarcated former British administrative line has little meaning as a political separation to rival clans within Ethiopia's Ogaden and southern Somalia's Oromo region; Ethiopian forces invaded southern Somalia and routed Islamist courts from Mogadishu in January 2007; "Somaliland" secessionists provide port facilities in Berbera and trade ties to landlocked Ethiopia; 

Ethiopia-Sudan: Ethiopia's construction of a large dam (the Grand Ethiopian Renaissance Dam) on the Blue Nile since 2011 has become a focal point of relations with Egypt and Sudan; as of 2020, four years of three-way talks between the three capitals over operating the dam and filling its reservoir had made little progress; Ethiopia began filling the dam in July 2020; civil unrest in eastern Sudan has hampered efforts to demarcate the porous boundary with Ethiopia

Topic: European Unionas a political union, the EU has no border disputes with neighboring countries, but Estonia has no land boundary agreements with Russia, Slovenia disputes its land and maritime boundaries with Croatia, and Spain has territorial and maritime disputes with Morocco and with the UK over Gibraltar; the EU has set up a Schengen area - consisting of 22 EU member states that have signed the convention implementing the Schengen agreements or "acquis" (1985 and 1990) on the free movement of persons and the harmonization of border controls in Europe; these agreements became incorporated into EU law with the implementation of the 1997 Treaty of Amsterdam on 1 May 1999; in addition, non-EU states Iceland and Norway (as part of the Nordic Union) have been included in the Schengen area since 1996 (full members in 2001), Switzerland since 2008, and Liechtenstein since 2011 bringing the total current membership to 26; the UK (since 2000) and Ireland (since 2002) take part in only some aspects of the Schengen area, especially with respect to police and criminal matters; nine of the 13 new member states that joined the EU since 2004 joined Schengen on 21 December 2007; of the four remaining EU states, Romania, Bulgaria, and Croatia are obligated to eventually join, while Cyprus' entry is held up by the ongoing Cyprus disputeas a political union, the EU has no border disputes with neighboring countries, but Estonia has no land boundary agreements with Russia, Slovenia disputes its land and maritime boundaries with Croatia, and Spain has territorial and maritime disputes with Morocco and with the UK over Gibraltar; the EU has set up a Schengen area - consisting of 22 EU member states that have signed the convention implementing the Schengen agreements or "acquis" (1985 and 1990) on the free movement of persons and the harmonization of border controls in Europe; these agreements became incorporated into EU law with the implementation of the 1997 Treaty of Amsterdam on 1 May 1999; in addition, non-EU states Iceland and Norway (as part of the Nordic Union) have been included in the Schengen area since 1996 (full members in 2001), Switzerland since 2008, and Liechtenstein since 2011 bringing the total current membership to 26; the UK (since 2000) and Ireland (since 2002) take part in only some aspects of the Schengen area, especially with respect to police and criminal matters; nine of the 13 new member states that joined the EU since 2004 joined Schengen on 21 December 2007; of the four remaining EU states, Romania, Bulgaria, and Croatia are obligated to eventually join, while Cyprus' entry is held up by the ongoing Cyprus dispute

Topic: Falkland Islands (Islas Malvinas)Argentina, which claims the islands in its constitution and briefly occupied them by force in 1982, agreed in 1995 to no longer seek settlement by force; UK continues to reject Argentine requests for sovereignty talksArgentina, which claims the islands in its constitution and briefly occupied them by force in 1982, agreed in 1995 to no longer seek settlement by force; UK continues to reject Argentine requests for sovereignty talks

Topic: Faroe Islandsbecause anticipated offshore hydrocarbon resources have not been realized, earlier Faroese proposals for full independence have been deferred; Iceland, the UK, and Ireland dispute Denmark's claim to UNCLOS that the Faroe Islands' continental shelf extends beyond 200 nmbecause anticipated offshore hydrocarbon resources have not been realized, earlier Faroese proposals for full independence have been deferred; Iceland, the UK, and Ireland dispute Denmark's claim to UNCLOS that the Faroe Islands' continental shelf extends beyond 200 nm

Topic: Fijimaritime boundary dispute with Tonga

Topic: Finlandvarious groups in Finland advocate restoration of Karelia and other areas ceded to the former Soviet Union, but the Finnish Government asserts no territorial demandsvarious groups in Finland advocate restoration of Karelia and other areas ceded to the former Soviet Union, but the Finnish Government asserts no territorial demands

Topic: FranceMadagascar claims the French territories of Bassas da India, Europa Island, Glorioso Islands, and Juan de Nova Island; Comoros claims Mayotte; Mauritius claims Tromelin Island; territorial dispute between Suriname and the French overseas department of French Guiana; France asserts a territorial claim in Antarctica (Adelie Land); France and Vanuatu claim Matthew and Hunter Islands, east of New CaledoniaMadagascar claims the French territories of Bassas da India, Europa Island, Glorioso Islands, and Juan de Nova Island; Comoros claims Mayotte; Mauritius claims Tromelin Island; territorial dispute between Suriname and the French overseas department of French Guiana; France asserts a territorial claim in Antarctica (Adelie Land); France and Vanuatu claim Matthew and Hunter Islands, east of New Caledonia

Topic: French Polynesianonenone

Topic: French Southern and Antarctic LandsFrench claim to "Adelie Land" in Antarctica is not recognized by the US; Bassas da India, Europa Island, Glorioso Islands, Juan de Nova Island (Iles Eparses): ; claimed by Madagascar; the vegetated drying cays of Banc du Geyser, which were claimed by Madagascar in 1976, also fall within the EEZ claims of the Comoros and France (Glorioso Islands); ; Tromelin Island (Iles Eparses): ; claimed by MauritiusFrench claim to "Adelie Land" in Antarctica is not recognized by the US; Bassas da India, Europa Island, Glorioso Islands, Juan de Nova Island (Iles Eparses): ; claimed by Madagascar; the vegetated drying cays of Banc du Geyser, which were claimed by Madagascar in 1976, also fall within the EEZ claims of the Comoros and France (Glorioso Islands); ; Tromelin Island (Iles Eparses): ; claimed by Mauritius

Topic: GabonUN urges Equatorial Guinea and Gabon to resolve the sovereignty dispute over Gabon-occupied Mbane Island and lesser islands and to establish a maritime boundary in hydrocarbon-rich Corisco BayUN urges Equatorial Guinea and Gabon to resolve the sovereignty dispute over Gabon-occupied Mbane Island and lesser islands and to establish a maritime boundary in hydrocarbon-rich Corisco Bay

Topic: Gambia, Theattempts to stem refugees, cross-border raids, arms smuggling, and other illegal activities by separatists from southern Senegal's Casamance region, as well as from conflicts in other west African statesattempts to stem refugees, cross-border raids, arms smuggling, and other illegal activities by separatists from southern Senegal's Casamance region, as well as from conflicts in other west African states

Topic: Gaza Stripaccording to the Oslo Accords, the status of the Gaza Strip is a final status issue to be resolved through negotiations; Israel removed settlers and military personnel from Gaza Strip in September 2005according to the Oslo Accords, the status of the Gaza Strip is a final status issue to be resolved through negotiations; Israel removed settlers and military personnel from Gaza Strip in September 2005

Topic: GeorgiaRussia's military support and subsequent recognition of Abkhazia and South Ossetia independence in 2008 continue to sour relations with GeorgiaRussia's military support and subsequent recognition of Abkhazia and South Ossetia independence in 2008 continue to sour relations with Georgia

Topic: Germanynonenone

Topic: Ghanadisputed maritime border between Ghana and Cote d'Ivoiredisputed maritime border between Ghana and Cote d'Ivoire

Topic: Gibraltarin 2002, Gibraltar residents voted overwhelmingly by referendum to reject any "shared sovereignty" arrangement; the Government of Gibraltar insists on equal participation in talks between the UK and Spain; Spain disapproves of UK plans to grant Gibraltar even greater autonomyin 2002, Gibraltar residents voted overwhelmingly by referendum to reject any "shared sovereignty" arrangement; the Government of Gibraltar insists on equal participation in talks between the UK and Spain; Spain disapproves of UK plans to grant Gibraltar even greater autonomy

Topic: GreeceGreece and Turkey continue discussions to resolve their complex maritime, air, territorial, and boundary disputes in the Aegean Sea; the mass migration of unemployed Albanians still remains a problem for developed countries, chiefly Greece and ItalyGreece and Turkey continue discussions to resolve their complex maritime, air, territorial, and boundary disputes in the Aegean Sea; the mass migration of unemployed Albanians still remains a problem for developed countries, chiefly Greece and Italy

Topic: Greenlandmanaged dispute between Canada and Denmark over Hans Island in the Kennedy Channel between Canada's Ellesmere Island and Greenland; Denmark (Greenland) and Norway have made submissions to the Commission on the Limits of the Continental Shelf (CLCS) and Russia is collecting additional data to augment its 2001 CLCS submissionmanaged dispute between Canada and Denmark over Hans Island in the Kennedy Channel between Canada's Ellesmere Island and Greenland; Denmark (Greenland) and Norway have made submissions to the Commission on the Limits of the Continental Shelf (CLCS) and Russia is collecting additional data to augment its 2001 CLCS submission

Topic: Grenadanonenone

Topic: Guamnonenone

Topic: Guatemalaannual ministerial meetings under the Organization of American States-initiated Agreement on the Framework for Negotiations and Confidence Building Measures continue to address Guatemalan land and maritime claims in Belize and the Caribbean Sea; Guatemala persists in its territorial claim to half of Belize, but agrees to Line of Adjacency to keep Guatemalan squatters out of Belize's forested interior; both countries agreed in April 2012 to hold simultaneous referenda, scheduled for 6 October 2013, to decide whether to refer the dispute to the ICJ for binding resolution, but this vote was suspended indefinitely; Mexico must deal with thousands of impoverished Guatemalans and other Central Americans who cross the porous border looking for work in Mexico and the USannual ministerial meetings under the Organization of American States-initiated Agreement on the Framework for Negotiations and Confidence Building Measures continue to address Guatemalan land and maritime claims in Belize and the Caribbean Sea; Guatemala persists in its territorial claim to half of Belize, but agrees to Line of Adjacency to keep Guatemalan squatters out of Belize's forested interior; both countries agreed in April 2012 to hold simultaneous referenda, scheduled for 6 October 2013, to decide whether to refer the dispute to the ICJ for binding resolution, but this vote was suspended indefinitely; Mexico must deal with thousands of impoverished Guatemalans and other Central Americans who cross the porous border looking for work in Mexico and the US

Topic: Guernseynonenone

Topic: GuineaSierra Leone considers Guinea's definition of the flood plain limits to define the left bank boundary of the Makona and Moa Rivers excessive and protests Guinea's continued occupation of these lands, including the hamlet of Yenga, occupied since 1998Sierra Leone considers Guinea's definition of the flood plain limits to define the left bank boundary of the Makona and Moa Rivers excessive and protests Guinea's continued occupation of these lands, including the hamlet of Yenga, occupied since 1998

Topic: Guinea-Bissaua longstanding low-grade conflict continues in parts of Casamance, in Senegal across the border; some rebels use Guinea-Bissau as a safe havena longstanding low-grade conflict continues in parts of Casamance, in Senegal across the border; some rebels use Guinea-Bissau as a safe haven

Topic: Guyanaall of the area west of the Essequibo River is claimed by Venezuela preventing any discussion of a maritime boundary; Guyana has expressed its intention to join Barbados in asserting claims before UN Convention on the Law of the Sea (UNCLOS) that Trinidad and Tobago's maritime boundary with Venezuela extends into their waters; Suriname claims a triangle of land between the New and Kutari/Koetari Rivers in a historic dispute over the headwaters of the Courantyneall of the area west of the Essequibo River is claimed by Venezuela preventing any discussion of a maritime boundary; Guyana has expressed its intention to join Barbados in asserting claims before UN Convention on the Law of the Sea (UNCLOS) that Trinidad and Tobago's maritime boundary with Venezuela extends into their waters; Suriname claims a triangle of land between the New and Kutari/Koetari Rivers in a historic dispute over the headwaters of the Courantyne

Topic: Haitisince 2004, peacekeepers from the UN Stabilization Mission in Haiti have assisted in maintaining civil order in Haiti; the mission currently includes 6,685 military, 2,607 police, and 443 civilian personnel; despite efforts to control illegal migration, Haitians cross into the Dominican Republic and sail to neighboring countries; Haiti claims US-administered Navassa Islandsince 2004, peacekeepers from the UN Stabilization Mission in Haiti have assisted in maintaining civil order in Haiti; the mission currently includes 6,685 military, 2,607 police, and 443 civilian personnel; despite efforts to control illegal migration, Haitians cross into the Dominican Republic and sail to neighboring countries; Haiti claims US-administered Navassa Island

Topic: Heard Island and McDonald Islandsnonenone

Topic: Holy See (Vatican City)nonenone

Topic: HondurasInternational Court of Justice (ICJ) ruled on the delimitation of "bolsones" (disputed areas) along the El Salvador-Honduras border in 1992 with final settlement by the parties in 2006 after an Organization of American States survey and a further ICJ ruling in 2003; the 1992 ICJ ruling advised a tripartite resolution to a maritime boundary in the Gulf of Fonseca with consideration of Honduran access to the Pacific; El Salvador continues to claim tiny Conejo Island, not mentioned in the ICJ ruling, off Honduras in the Gulf of Fonseca; Honduras claims the Belizean-administered Sapodilla Cays off the coast of Belize in its constitution, but agreed to a joint ecological park around the cays should Guatemala consent to a maritime corridor in the Caribbean under the OAS-sponsored 2002 Belize-Guatemala DifferendumInternational Court of Justice (ICJ) ruled on the delimitation of "bolsones" (disputed areas) along the El Salvador-Honduras border in 1992 with final settlement by the parties in 2006 after an Organization of American States survey and a further ICJ ruling in 2003; the 1992 ICJ ruling advised a tripartite resolution to a maritime boundary in the Gulf of Fonseca with consideration of Honduran access to the Pacific; El Salvador continues to claim tiny Conejo Island, not mentioned in the ICJ ruling, off Honduras in the Gulf of Fonseca; Honduras claims the Belizean-administered Sapodilla Cays off the coast of Belize in its constitution, but agreed to a joint ecological park around the cays should Guatemala consent to a maritime corridor in the Caribbean under the OAS-sponsored 2002 Belize-Guatemala Differendum

Topic: Hong KongHong Kong plans to reduce its 2,800-hectare Frontier Closed Area (FCA) to 400 hectares by 2015; the FCA was established in 1951 as a buffer zone between Hong Kong and mainland China to prevent illegal migration from and the smuggling of goodsHong Kong plans to reduce its 2,800-hectare Frontier Closed Area (FCA) to 400 hectares by 2015; the FCA was established in 1951 as a buffer zone between Hong Kong and mainland China to prevent illegal migration from and the smuggling of goods

Topic: Hungarybilateral government, legal, technical and economic working group negotiations continue in 2006 with Slovakia over Hungary's failure to complete its portion of the Gabcikovo-Nagymaros hydroelectric dam project along the Danube; as a member state that forms part of the EU's external border, Hungary has implemented the strict Schengen border rulesbilateral government, legal, technical and economic working group negotiations continue in 2006 with Slovakia over Hungary's failure to complete its portion of the Gabcikovo-Nagymaros hydroelectric dam project along the Danube; as a member state that forms part of the EU's external border, Hungary has implemented the strict Schengen border rules

Topic: IcelandIceland, the UK, and Ireland dispute Denmark's claim that the Faroe Islands' continental shelf extends beyond 200 nm; the European Free Trade Association Surveillance Authority filed a suit against Iceland, claiming the country violated the Agreement on the European Economic Area in failing to pay minimum compensation to Icesave depositorsIceland, the UK, and Ireland dispute Denmark's claim that the Faroe Islands' continental shelf extends beyond 200 nm; the European Free Trade Association Surveillance Authority filed a suit against Iceland, claiming the country violated the Agreement on the European Economic Area in failing to pay minimum compensation to Icesave depositors

Topic: Indiasince China and India launched a security and foreign policy dialogue in 2005, consolidated discussions related to the dispute over most of their rugged, militarized boundary, regional nuclear proliferation, Indian claims that China transferred missiles to Pakistan, and other matters continue; Kashmir remains the site of the world's largest and most militarized territorial dispute with portions under the de facto administration of China (Aksai Chin), India (Jammu and Kashmir), and Pakistan (Azad Kashmir and Northern Areas); India and Pakistan resumed bilateral dialogue in February 2011 after a two-year hiatus, have maintained the 2003 cease-fire in Kashmir, and continue to have disputes over water sharing of the Indus River and its tributaries; UN Military Observer Group in India and Pakistan has maintained a small group of peacekeepers since 1949; India does not recognize Pakistan's ceding historic Kashmir lands to China in 1964; to defuse tensions and prepare for discussions on a maritime boundary, India and Pakistan seek technical resolution of the disputed boundary in Sir Creek estuary at the mouth of the Rann of Kutch in the Arabian Sea; Pakistani maps continue to show its Junagadh claim in Indian Gujarat State; Prime Minister Singh's September 2011 visit to Bangladesh resulted in the signing of a Protocol to the 1974 Land Boundary Agreement between India and Bangladesh, which had called for the settlement of longstanding boundary disputes over undemarcated areas and the exchange of territorial enclaves, but which had never been implemented; Bangladesh referred its maritime boundary claims with Burma and India to the International Tribunal on the Law of the Sea; Joint Border Committee with Nepal continues to examine contested boundary sections, including the 400 sq km dispute over the source of the Kalapani River; India maintains a strict border regime to keep out Maoist insurgents and control illegal cross-border activities from Nepalsince China and India launched a security and foreign policy dialogue in 2005, consolidated discussions related to the dispute over most of their rugged, militarized boundary, regional nuclear proliferation, Indian claims that China transferred missiles to Pakistan, and other matters continue; Kashmir remains the site of the world's largest and most militarized territorial dispute with portions under the de facto administration of China (Aksai Chin), India (Jammu and Kashmir), and Pakistan (Azad Kashmir and Northern Areas); India and Pakistan resumed bilateral dialogue in February 2011 after a two-year hiatus, have maintained the 2003 cease-fire in Kashmir, and continue to have disputes over water sharing of the Indus River and its tributaries; UN Military Observer Group in India and Pakistan has maintained a small group of peacekeepers since 1949; India does not recognize Pakistan's ceding historic Kashmir lands to China in 1964; to defuse tensions and prepare for discussions on a maritime boundary, India and Pakistan seek technical resolution of the disputed boundary in Sir Creek estuary at the mouth of the Rann of Kutch in the Arabian Sea; Pakistani maps continue to show its Junagadh claim in Indian Gujarat State; Prime Minister Singh's September 2011 visit to Bangladesh resulted in the signing of a Protocol to the 1974 Land Boundary Agreement between India and Bangladesh, which had called for the settlement of longstanding boundary disputes over undemarcated areas and the exchange of territorial enclaves, but which had never been implemented; Bangladesh referred its maritime boundary claims with Burma and India to the International Tribunal on the Law of the Sea; Joint Border Committee with Nepal continues to examine contested boundary sections, including the 400 sq km dispute over the source of the Kalapani River; India maintains a strict border regime to keep out Maoist insurgents and control illegal cross-border activities from Nepal

Topic: Indian Oceansome maritime disputes (see littoral states)some maritime disputes (see littoral states)

Topic: IndonesiaIndonesia has a stated foreign policy objective of establishing stable fixed land and maritime boundaries with all of its neighbors; three stretches of land borders with Timor-Leste have yet to be delimited, two of which are in the Oecussi exclave area, and no maritime or Exclusive Economic Zone (EEZ) boundaries have been established between the countries; all borders between Indonesia and Australia have been agreed upon bilaterally, but a 1997 treaty that would settle the last of their maritime and EEZ boundary has yet to be ratified by Indonesia's legislature; Indonesian groups challenge Australia's claim to Ashmore Reef; Australia has closed parts of the Ashmore and Cartier Reserve to Indonesian traditional fishing and placed restrictions on certain catches; land and maritime negotiations with Malaysia are ongoing, and disputed areas include the controversial Tanjung Datu and Camar Wulan border area in Borneo and the maritime boundary in the Ambalat oil block in the Celebes Sea; Indonesia and Singapore continue to work on finalizing their 1973 maritime boundary agreement by defining unresolved areas north of Indonesia's Batam Island; Indonesian secessionists, squatters, and illegal migrants create repatriation problems for Papua New Guinea; maritime delimitation talks continue with Palau; EEZ negotiations with Vietnam are ongoing, and the two countries in Fall 2011 agreed to work together to reduce illegal fishing along their maritime boundaryIndonesia has a stated foreign policy objective of establishing stable fixed land and maritime boundaries with all of its neighbors; three stretches of land borders with Timor-Leste have yet to be delimited, two of which are in the Oecussi exclave area, and no maritime or Exclusive Economic Zone (EEZ) boundaries have been established between the countries; all borders between Indonesia and Australia have been agreed upon bilaterally, but a 1997 treaty that would settle the last of their maritime and EEZ boundary has yet to be ratified by Indonesia's legislature; Indonesian groups challenge Australia's claim to Ashmore Reef; Australia has closed parts of the Ashmore and Cartier Reserve to Indonesian traditional fishing and placed restrictions on certain catches; land and maritime negotiations with Malaysia are ongoing, and disputed areas include the controversial Tanjung Datu and Camar Wulan border area in Borneo and the maritime boundary in the Ambalat oil block in the Celebes Sea; Indonesia and Singapore continue to work on finalizing their 1973 maritime boundary agreement by defining unresolved areas north of Indonesia's Batam Island; Indonesian secessionists, squatters, and illegal migrants create repatriation problems for Papua New Guinea; maritime delimitation talks continue with Palau; EEZ negotiations with Vietnam are ongoing, and the two countries in Fall 2011 agreed to work together to reduce illegal fishing along their maritime boundary

Topic: IranIran protests Afghanistan's limiting flow of dammed Helmand River tributaries during drought; Iraq's lack of a maritime boundary with Iran prompts jurisdiction disputes beyond the mouth of the Shatt al Arab in the Persian Gulf; Iran and UAE dispute Tunb Islands and Abu Musa Island, which are occupied by Iran; Azerbaijan, Kazakhstan, and Russia ratified Caspian seabed delimitation treaties based on equidistance, while Iran continues to insist on a one-fifth slice of the sea; Afghan and Iranian commissioners have discussed boundary monument densification and resurveyIran protests Afghanistan's limiting flow of dammed Helmand River tributaries during drought; Iraq's lack of a maritime boundary with Iran prompts jurisdiction disputes beyond the mouth of the Shatt al Arab in the Persian Gulf; Iran and UAE dispute Tunb Islands and Abu Musa Island, which are occupied by Iran; Azerbaijan, Kazakhstan, and Russia ratified Caspian seabed delimitation treaties based on equidistance, while Iran continues to insist on a one-fifth slice of the sea; Afghan and Iranian commissioners have discussed boundary monument densification and resurvey

Topic: IraqIraq's lack of a maritime boundary with Iran prompts jurisdiction disputes beyond the mouth of the Shatt al Arab in the Persian Gulf; Turkey has expressed concern over the autonomous status of Kurds in IraqIraq's lack of a maritime boundary with Iran prompts jurisdiction disputes beyond the mouth of the Shatt al Arab in the Persian Gulf; Turkey has expressed concern over the autonomous status of Kurds in Iraq

Topic: IrelandIreland, Iceland, and the UK dispute Denmark's claim that the Faroe Islands' continental shelf extends beyond 200 nmIreland, Iceland, and the UK dispute Denmark's claim that the Faroe Islands' continental shelf extends beyond 200 nm

Topic: Isle of Mannonenone

Topic: IsraelWest Bank is Israeli-occupied with current status subject to the Israeli-Palestinian Interim Agreement - permanent status to be determined through further negotiation; in 2002, Israel began construction of a "seam line" separation barrier along parts of the Green Line and within the West Bank; as of mid-2020, plans were to continue barrier construction; Israel withdrew its settlers and military from the Gaza Strip and from four settlements in the West Bank in August 2005; Golan Heights is Israeli-controlled (Lebanon claims the Shab'a Farms area of Golan Heights); in March 2019, the US Government recognized Israel's sovereignty over the Golan Heights; since 1948, about 350 peacekeepers from the UN Truce Supervision Organization headquartered in Jerusalem monitor ceasefires, supervise armistice agreements, prevent isolated incidents from escalating, and assist other UN personnel in the regionWest Bank is Israeli-occupied with current status subject to the Israeli-Palestinian Interim Agreement - permanent status to be determined through further negotiation; in 2002, Israel began construction of a "seam line" separation barrier along parts of the Green Line and within the West Bank; as of mid-2020, plans were to continue barrier construction; Israel withdrew its settlers and military from the Gaza Strip and from four settlements in the West Bank in August 2005; Golan Heights is Israeli-controlled (Lebanon claims the Shab'a Farms area of Golan Heights); in March 2019, the US Government recognized Israel's sovereignty over the Golan Heights; since 1948, about 350 peacekeepers from the UN Truce Supervision Organization headquartered in Jerusalem monitor ceasefires, supervise armistice agreements, prevent isolated incidents from escalating, and assist other UN personnel in the region

Topic: ItalyItaly's long coastline and developed economy entices tens of thousands of illegal immigrants from southeastern Europe and northern AfricaItaly's long coastline and developed economy entices tens of thousands of illegal immigrants from southeastern Europe and northern Africa

Topic: Jamaicanonenone

Topic: Jan Mayennonenone

Topic: Japanthe sovereignty dispute over the islands of Etorofu, Kunashiri, and Shikotan, and the Habomai group, known in Japan as the "Northern Territories" and in Russia as the "Southern Kuril Islands," occupied by the Soviet Union in 1945, now administered by Russia and claimed by Japan, remains the primary sticking point to signing a peace treaty formally ending World War II hostilities; Japan and South Korea claim Liancourt Rocks (Take-shima/Tok-do) occupied by South Korea since 1954; the Japanese-administered Senkaku Islands are also claimed by China and Taiwanthe sovereignty dispute over the islands of Etorofu, Kunashiri, and Shikotan, and the Habomai group, known in Japan as the "Northern Territories" and in Russia as the "Southern Kuril Islands," occupied by the Soviet Union in 1945, now administered by Russia and claimed by Japan, remains the primary sticking point to signing a peace treaty formally ending World War II hostilities; Japan and South Korea claim Liancourt Rocks (Take-shima/Tok-do) occupied by South Korea since 1954; the Japanese-administered Senkaku Islands are also claimed by China and Taiwan

Topic: Jerseynonenone

Topic: Jordan2004 Agreement settles border dispute with Syria pending demarcation2004 Agreement settles border dispute with Syria pending demarcation

Topic: Kazakhstanin January 2019, the Kyrgyz Republic ratified the demarcation agreement of the Kazakh-Kyrgyz border; the demarcation of the Kazakh-Uzbek borders is ongoing; the ongoing demarcation with Russia began in 2007; demarcation with China completed in 2002in January 2019, the Kyrgyz Republic ratified the demarcation agreement of the Kazakh-Kyrgyz border; the demarcation of the Kazakh-Uzbek borders is ongoing; the ongoing demarcation with Russia began in 2007; demarcation with China completed in 2002

Topic: KenyaKenya served as an important mediator in brokering Sudan's north-south separation in February 2005; as of March 2019, Kenya provides shelter to nearly 475,000 refugees and asylum seekers, including Ugandans who flee across the border periodically to seek protection from Lord's Resistance Army rebels; Kenya works hard to prevent the clan and militia fighting in Somalia from spreading across the border, which has long been open to nomadic pastoralists; the boundary that separates Kenya's and Sudan's sovereignty is unclear in the "Ilemi Triangle," which Kenya has administered since colonial times

Uganda-Kenya: Kenya and Uganda have begun a joint demarcation of the boundary in 2021 Kenya served as an important mediator in brokering Sudan's north-south separation in February 2005; as of March 2019, Kenya provides shelter to nearly 475,000 refugees and asylum seekers, including Ugandans who flee across the border periodically to seek protection from Lord's Resistance Army rebels; Kenya works hard to prevent the clan and militia fighting in Somalia from spreading across the border, which has long been open to nomadic pastoralists; the boundary that separates Kenya's and Sudan's sovereignty is unclear in the "Ilemi Triangle," which Kenya has administered since colonial times

Uganda-Kenya: Kenya and Uganda have begun a joint demarcation of the boundary in 2021 

Topic: Kiribatinonenone

Topic: Korea, Northrisking arrest, imprisonment, and deportation, tens of thousands of North Koreans cross into China to escape famine, economic privation, and political oppression; North Korea and China dispute the sovereignty of certain islands in Yalu and Tumen Rivers; Military Demarcation Line within the 4-km-wide Demilitarized Zone has separated North from South Korea since 1953; periodic incidents in the Yellow Sea with South Korea which claims the Northern Limiting Line as a maritime boundary; North Korea supports South Korea in rejecting Japan's claim to Liancourt Rocks (Tok-do/Take-shima)risking arrest, imprisonment, and deportation, tens of thousands of North Koreans cross into China to escape famine, economic privation, and political oppression; North Korea and China dispute the sovereignty of certain islands in Yalu and Tumen Rivers; Military Demarcation Line within the 4-km-wide Demilitarized Zone has separated North from South Korea since 1953; periodic incidents in the Yellow Sea with South Korea which claims the Northern Limiting Line as a maritime boundary; North Korea supports South Korea in rejecting Japan's claim to Liancourt Rocks (Tok-do/Take-shima)

Topic: Korea, SouthMilitary Demarcation Line within the 4-km-wide Demilitarized Zone has separated North from South Korea since 1953; periodic incidents with North Korea in the Yellow Sea over the Northern Limit Line, which South Korea claims as a maritime boundary; South Korea and Japan claim Liancourt Rocks (Tok-do/Take-shima), occupied by South Korea since 1954Military Demarcation Line within the 4-km-wide Demilitarized Zone has separated North from South Korea since 1953; periodic incidents with North Korea in the Yellow Sea over the Northern Limit Line, which South Korea claims as a maritime boundary; South Korea and Japan claim Liancourt Rocks (Tok-do/Take-shima), occupied by South Korea since 1954

Topic: KosovoSerbia with several other states protest the US and other states' recognition of Kosovo's declaration of its status as a sovereign and independent state in February 2008; ethnic Serbian municipalities along Kosovo's northern border challenge final status of Kosovo-Serbia boundary; NATO-led Kosovo Force peacekeepers under UN Interim Administration Mission in Kosovo authority continue to ensure a safe and secure environment and freedom of movement for all Kosovo citizens; Kosovo and North Macedonia completed demarcation of their boundary in September 2008; Kosovo ratified the border demarcation agreement with Montenegro in March 2018, but the actual demarcation has not been completedSerbia with several other states protest the US and other states' recognition of Kosovo's declaration of its status as a sovereign and independent state in February 2008; ethnic Serbian municipalities along Kosovo's northern border challenge final status of Kosovo-Serbia boundary; NATO-led Kosovo Force peacekeepers under UN Interim Administration Mission in Kosovo authority continue to ensure a safe and secure environment and freedom of movement for all Kosovo citizens; Kosovo and North Macedonia completed demarcation of their boundary in September 2008; Kosovo ratified the border demarcation agreement with Montenegro in March 2018, but the actual demarcation has not been completed

Topic: KuwaitKuwait and Saudi Arabia continue negotiating a joint maritime boundary with Iran; no maritime boundary exists with Iraq in the Persian GulfKuwait and Saudi Arabia continue negotiating a joint maritime boundary with Iran; no maritime boundary exists with Iraq in the Persian Gulf

Topic: Kyrgyzstandisputes in Isfara Valley delay completion of delimitation with Tajikistan; delimitation of approximately 15% or 200 km of border with Uzbekistan is hampered by serious disputes over enclaves and other areasdisputes in Isfara Valley delay completion of delimitation with Tajikistan; delimitation of approximately 15% or 200 km of border with Uzbekistan is hampered by serious disputes over enclaves and other areas

Topic: Laossoutheast Asian states have enhanced border surveillance to check the spread of avian flu; talks continue on completion of demarcation with Thailand but disputes remain over islands in the Mekong River; Cambodia and Laos have a longstanding border demarcation dispute; concern among Mekong River Commission members that China's construction of eight dams on the Upper Mekong River and construction of more dams on its tributaries will affect water levels, sediment flows, and fisheries; Cambodia and Vietnam are concerned about Laos' extensive plans for upstream dam construction for the same reasonssoutheast Asian states have enhanced border surveillance to check the spread of avian flu; talks continue on completion of demarcation with Thailand but disputes remain over islands in the Mekong River; Cambodia and Laos have a longstanding border demarcation dispute; concern among Mekong River Commission members that China's construction of eight dams on the Upper Mekong River and construction of more dams on its tributaries will affect water levels, sediment flows, and fisheries; Cambodia and Vietnam are concerned about Laos' extensive plans for upstream dam construction for the same reasons

Topic: LatviaRussia demands better Latvian treatment of ethnic Russians in Latvia; boundary demarcated with Latvia and Lithuania; the Latvian parliament has not ratified its 1998 maritime boundary treaty with Lithuania, primarily due to concerns over oil exploration rights; as a member state that forms part of the EU's external border, Latvia has implemented the strict Schengen border rules with RussiaRussia demands better Latvian treatment of ethnic Russians in Latvia; boundary demarcated with Latvia and Lithuania; the Latvian parliament has not ratified its 1998 maritime boundary treaty with Lithuania, primarily due to concerns over oil exploration rights; as a member state that forms part of the EU's external border, Latvia has implemented the strict Schengen border rules with Russia

Topic: Lebanonlacking a treaty or other documentation describing the boundary, portions of the Lebanon-Syria boundary are unclear with several sections in dispute; since 2000, Lebanon has claimed Shab'a Farms area in the Israeli-controlled Golan Heights; the roughly 2,000-strong UN Interim Force in Lebanon has been in place since 1978lacking a treaty or other documentation describing the boundary, portions of the Lebanon-Syria boundary are unclear with several sections in dispute; since 2000, Lebanon has claimed Shab'a Farms area in the Israeli-controlled Golan Heights; the roughly 2,000-strong UN Interim Force in Lebanon has been in place since 1978

Topic: LesothoSouth Africa has placed military units to assist police operations along the border of Lesotho, Zimbabwe, and Mozambique to control smuggling, poaching, and illegal migrationSouth Africa has placed military units to assist police operations along the border of Lesotho, Zimbabwe, and Mozambique to control smuggling, poaching, and illegal migration

Topic: Liberiaas the UN Mission in Liberia (UNMIL) continues to drawdown prior to the 1 March 2018 closure date, the peacekeeping force is being reduced to 434 soldiers and two police units; some Liberian refugees still remain in Guinea, Cote d'Ivoire, Sierra Leone, and Ghana; Liberia shelters 7,811 Ivoirian refugees, as of February 2022as the UN Mission in Liberia (UNMIL) continues to drawdown prior to the 1 March 2018 closure date, the peacekeeping force is being reduced to 434 soldiers and two police units; some Liberian refugees still remain in Guinea, Cote d'Ivoire, Sierra Leone, and Ghana; Liberia shelters 7,811 Ivoirian refugees, as of February 2022

Topic: LibyaLibya-Algeria: dormant disputes include Libyan claims of about 32,000 sq km still reflected on its maps of southeastern Algeria

Libya-Chad: various Chadian rebels from the Aozou region reside in southern LibyaLibya-Algeria: dormant disputes include Libyan claims of about 32,000 sq km still reflected on its maps of southeastern Algeria

Libya-Chad: various Chadian rebels from the Aozou region reside in southern Libya

Topic: Liechtensteinnonenone

Topic: LithuaniaLithuania and Russia committed to demarcating their boundary in 2006 in accordance with the land and maritime treaty ratified by Russia in May 2003 and by Lithuania in 1999; Lithuania operates a simplified transit regime for Russian nationals traveling from the Kaliningrad coastal exclave into Russia, while still conforming, as a EU member state having an external border with a non-EU member, to strict Schengen border rules; boundary demarcated with Latvia and Lithuania; as of January 2007, ground demarcation of the boundary with Belarus was complete and mapped with final ratification documents in preparationLithuania and Russia committed to demarcating their boundary in 2006 in accordance with the land and maritime treaty ratified by Russia in May 2003 and by Lithuania in 1999; Lithuania operates a simplified transit regime for Russian nationals traveling from the Kaliningrad coastal exclave into Russia, while still conforming, as a EU member state having an external border with a non-EU member, to strict Schengen border rules; boundary demarcated with Latvia and Lithuania; as of January 2007, ground demarcation of the boundary with Belarus was complete and mapped with final ratification documents in preparation

Topic: Luxembourgnonenone

Topic: Macaunonenone

Topic: Madagascarclaims Bassas da India, Europa Island, Glorioso Islands, and Juan de Nova Island (all administered by France); the vegetated drying cays of Banc du Geyser, which were claimed by Madagascar in 1976, also fall within the EEZ claims of the Comoros and France (Glorioso Islands, part of the French Southern and Antarctic Lands)claims Bassas da India, Europa Island, Glorioso Islands, and Juan de Nova Island (all administered by France); the vegetated drying cays of Banc du Geyser, which were claimed by Madagascar in 1976, also fall within the EEZ claims of the Comoros and France (Glorioso Islands, part of the French Southern and Antarctic Lands)

Topic: Malawidispute with Tanzania over the boundary in Lake Nyasa (Lake Malawi) and the meandering Songwe River; Malawi contends that the entire lake up to the Tanzanian shoreline is its territory, while Tanzania claims the border is in the center of the lake; the conflict was reignited in 2012 when Malawi awarded a license to a British company for oil exploration in the lakedispute with Tanzania over the boundary in Lake Nyasa (Lake Malawi) and the meandering Songwe River; Malawi contends that the entire lake up to the Tanzanian shoreline is its territory, while Tanzania claims the border is in the center of the lake; the conflict was reignited in 2012 when Malawi awarded a license to a British company for oil exploration in the lake

Topic: Malaysiawhile the 2002 "Declaration on the Conduct of Parties in the South China Sea" has eased tensions over the Spratly Islands, it is not the legally binding "code of conduct" sought by some parties, which is currently being negotiated between China and ASEAN; Malaysia was not party to the March 2005 joint accord among the national oil companies of China, the Philippines, and Vietnam on conducting marine seismic activities in the Spratly Islands; disputes continue over deliveries of fresh water to Singapore, Singapore's land reclamation, bridge construction, and maritime boundaries in the Johor and Singapore Straits; in 2008, ICJ awarded sovereignty of Pedra Branca (Pulau Batu Puteh/Horsburgh Island) to Singapore, and Middle Rocks to Malaysia, but did not rule on maritime regimes, boundaries, or disposition of South Ledge; land and maritime negotiations with Indonesia are ongoing, and disputed areas include the controversial Tanjung Datu and Camar Wulan border area in Borneo and the maritime boundary in the Ambalat oil block in the Celebes Sea; separatist violence in Thailand's predominantly Muslim southern provinces prompts measures to close and monitor border with Malaysia to stem terrorist activities; Philippines retains a dormant claim to Malaysia's Sabah State in northern Borneo; per Letters of Exchange signed in 2009, Malaysia in 2010 ceded two hydrocarbon concession blocks to Brunei in exchange for Brunei's sultan dropping claims to the Limbang corridor, which divides Brunei; piracy remains a problem in the Malacca Straitwhile the 2002 "Declaration on the Conduct of Parties in the South China Sea" has eased tensions over the Spratly Islands, it is not the legally binding "code of conduct" sought by some parties, which is currently being negotiated between China and ASEAN; Malaysia was not party to the March 2005 joint accord among the national oil companies of China, the Philippines, and Vietnam on conducting marine seismic activities in the Spratly Islands; disputes continue over deliveries of fresh water to Singapore, Singapore's land reclamation, bridge construction, and maritime boundaries in the Johor and Singapore Straits; in 2008, ICJ awarded sovereignty of Pedra Branca (Pulau Batu Puteh/Horsburgh Island) to Singapore, and Middle Rocks to Malaysia, but did not rule on maritime regimes, boundaries, or disposition of South Ledge; land and maritime negotiations with Indonesia are ongoing, and disputed areas include the controversial Tanjung Datu and Camar Wulan border area in Borneo and the maritime boundary in the Ambalat oil block in the Celebes Sea; separatist violence in Thailand's predominantly Muslim southern provinces prompts measures to close and monitor border with Malaysia to stem terrorist activities; Philippines retains a dormant claim to Malaysia's Sabah State in northern Borneo; per Letters of Exchange signed in 2009, Malaysia in 2010 ceded two hydrocarbon concession blocks to Brunei in exchange for Brunei's sultan dropping claims to the Limbang corridor, which divides Brunei; piracy remains a problem in the Malacca Strait

Topic: Maldivesnonenone

Topic: Malidemarcation is underway with Burkina Fasodemarcation is underway with Burkina Faso

Topic: Maltanonenone

Topic: Marshall Islandsclaims US territory of Wake Islandclaims US territory of Wake Island

Topic: MauritaniaMauritanian claims to Western Sahara remain dormantMauritanian claims to Western Sahara remain dormant

Topic: MauritiusMauritius and Seychelles claim the Chagos Islands (UK-administered British Indian Ocean Territory); claims French-administered Tromelin IslandMauritius and Seychelles claim the Chagos Islands (UK-administered British Indian Ocean Territory); claims French-administered Tromelin Island

Topic: Mexicoabundant rainfall in recent years along much of the Mexico-US border region has ameliorated periodically strained water-sharing arrangements; the US has intensified security measures to monitor and control legal and illegal personnel, transport, and commodities across its border with Mexico; Mexico must deal with thousands of impoverished Guatemalans and other Central Americans who cross the porous border looking for work in Mexico and the US; Belize and Mexico are working to solve minor border demarcation discrepancies arising from inaccuracies in the 1898 border treatyabundant rainfall in recent years along much of the Mexico-US border region has ameliorated periodically strained water-sharing arrangements; the US has intensified security measures to monitor and control legal and illegal personnel, transport, and commodities across its border with Mexico; Mexico must deal with thousands of impoverished Guatemalans and other Central Americans who cross the porous border looking for work in Mexico and the US; Belize and Mexico are working to solve minor border demarcation discrepancies arising from inaccuracies in the 1898 border treaty

Topic: Micronesia, Federated States ofnonenone

Topic: MoldovaMoldova and Ukraine operate joint customs posts to monitor the transit of people and commodities through Moldova's break-away Transnistria region, which remains under the auspices of an Organization for Security and Cooperation in Europe-mandated peacekeeping mission comprised of Moldovan, Transnistrian, Russian, and Ukrainian troopsMoldova and Ukraine operate joint customs posts to monitor the transit of people and commodities through Moldova's break-away Transnistria region, which remains under the auspices of an Organization for Security and Cooperation in Europe-mandated peacekeeping mission comprised of Moldovan, Transnistrian, Russian, and Ukrainian troops

Topic: Monacononenone

Topic: Mongolianonenone

Topic: MontenegroKosovo ratified the border demarcation agreement with Montenegro in March 2018, but the actual demarcation has not been completedKosovo ratified the border demarcation agreement with Montenegro in March 2018, but the actual demarcation has not been completed

Topic: Montserratnonenone

Topic: MoroccoMorocco protests Spain's control over the coastal enclaves of Ceuta, Melilla, and Penon de Velez de la Gomera, the islands of Penon de Alhucemas and Islas Chafarinas, and surrounding waters; both countries claim Isla Perejil (Leila Island); discussions have not progressed on a comprehensive maritime delimitation, setting limits on resource exploration and refugee interdiction, since Morocco's 2002 rejection of Spain's unilateral designation of a median line from the Canary Islands; Morocco serves as one of the primary launching areas of illegal migration into Spain from North Africa; Algeria's border with Morocco remains an irritant to bilateral relations, each nation accusing the other of harboring militants and arms smuggling; the National Liberation Front's assertions of a claim to Chirac Pastures in southeastern Morocco is a dormant disputeMorocco protests Spain's control over the coastal enclaves of Ceuta, Melilla, and Penon de Velez de la Gomera, the islands of Penon de Alhucemas and Islas Chafarinas, and surrounding waters; both countries claim Isla Perejil (Leila Island); discussions have not progressed on a comprehensive maritime delimitation, setting limits on resource exploration and refugee interdiction, since Morocco's 2002 rejection of Spain's unilateral designation of a median line from the Canary Islands; Morocco serves as one of the primary launching areas of illegal migration into Spain from North Africa; Algeria's border with Morocco remains an irritant to bilateral relations, each nation accusing the other of harboring militants and arms smuggling; the National Liberation Front's assertions of a claim to Chirac Pastures in southeastern Morocco is a dormant dispute

Topic: MozambiqueSouth Africa has placed military units to assist police operations along the border of Lesotho, Zimbabwe, and Mozambique to control smuggling, poaching, and illegal migrationSouth Africa has placed military units to assist police operations along the border of Lesotho, Zimbabwe, and Mozambique to control smuggling, poaching, and illegal migration

Topic: Namibiaconcerns from international experts and local populations over the Okavango Delta ecology in Botswana and human displacement scuttled Namibian plans to construct a hydroelectric dam on Popa Falls along the Angola-Namibia border; the governments of South Africa and Namibia have not signed or ratified the text of the 1994 Surveyor's General agreement placing the boundary in the middle of the Orange River; Namibia has supported, and in 2004 Zimbabwe dropped objections to, plans between Botswana and Zambia to build a bridge over the Zambezi River, thereby de facto recognizing a short, but not clearly delimited, Botswana-Zambia boundary in the river

Namibia-Angola: None identifiedconcerns from international experts and local populations over the Okavango Delta ecology in Botswana and human displacement scuttled Namibian plans to construct a hydroelectric dam on Popa Falls along the Angola-Namibia border; the governments of South Africa and Namibia have not signed or ratified the text of the 1994 Surveyor's General agreement placing the boundary in the middle of the Orange River; Namibia has supported, and in 2004 Zimbabwe dropped objections to, plans between Botswana and Zambia to build a bridge over the Zambezi River, thereby de facto recognizing a short, but not clearly delimited, Botswana-Zambia boundary in the river

Namibia-Angola: None identified

Topic: Naurunonenone

Topic: Navassa Islandclaimed by Haiti, source of subsistence fishingclaimed by Haiti, source of subsistence fishing

Topic: Nepaljoint border commission continues to work on contested sections of boundary with India, including the 400 sq km dispute over the source of the Kalapani River; India has instituted a stricter border regime to restrict transit of illegal cross-border activitiesjoint border commission continues to work on contested sections of boundary with India, including the 400 sq km dispute over the source of the Kalapani River; India has instituted a stricter border regime to restrict transit of illegal cross-border activities

Topic: Netherlandsnonenone

Topic: New CaledoniaMatthew and Hunter Islands east of New Caledonia claimed by France and VanuatuMatthew and Hunter Islands east of New Caledonia claimed by France and Vanuatu

Topic: New Zealandasserts a territorial claim in Antarctica (Ross Dependency)asserts a territorial claim in Antarctica (Ross Dependency)

Topic: Nicaraguathe 1992 ICJ ruling for El Salvador and Honduras advised a tripartite resolution to establish a maritime boundary in the Gulf of Fonseca, which considers Honduran access to the Pacific; Nicaragua and Costa Rica regularly file border dispute cases over the delimitations of the San Juan River and the northern tip of Calero Island to the ICJ; there is an ongoing case in the ICJ to determine Pacific and Atlantic ocean maritime borders as well as land borders; in 2009, the ICJ ruled that Costa Rican vessels carrying out police activities could not use the river, but official Costa Rican vessels providing essential services to riverside inhabitants and Costa Rican tourists could travel freely on the river; in 2011, the ICJ provisionally ruled that both countries must remove personnel from the disputed area; in 2013, the ICJ rejected Nicaragua's 2012 suit to halt Costa Rica's construction of a highway paralleling the river on the grounds of irreparable environmental damage; in 2013, the ICJ, regarding the disputed territory, ordered that Nicaragua should refrain from dredging or canal construction and refill and repair damage caused by trenches connecting the river to the Caribbean and upheld its 2010 ruling that Nicaragua must remove all personnel; in early 2014, Costa Rica brought Nicaragua to the ICJ over offshore oil concessions in the disputed region; Nicaragua filed a case against Colombia in 2013 over the delimitation of the Continental shelf beyond the 200 nautical miles from the Nicaraguan coast, as well as over the alleged violation by Colombia of Nicaraguan maritime space in the Caribbean Seathe 1992 ICJ ruling for El Salvador and Honduras advised a tripartite resolution to establish a maritime boundary in the Gulf of Fonseca, which considers Honduran access to the Pacific; Nicaragua and Costa Rica regularly file border dispute cases over the delimitations of the San Juan River and the northern tip of Calero Island to the ICJ; there is an ongoing case in the ICJ to determine Pacific and Atlantic ocean maritime borders as well as land borders; in 2009, the ICJ ruled that Costa Rican vessels carrying out police activities could not use the river, but official Costa Rican vessels providing essential services to riverside inhabitants and Costa Rican tourists could travel freely on the river; in 2011, the ICJ provisionally ruled that both countries must remove personnel from the disputed area; in 2013, the ICJ rejected Nicaragua's 2012 suit to halt Costa Rica's construction of a highway paralleling the river on the grounds of irreparable environmental damage; in 2013, the ICJ, regarding the disputed territory, ordered that Nicaragua should refrain from dredging or canal construction and refill and repair damage caused by trenches connecting the river to the Caribbean and upheld its 2010 ruling that Nicaragua must remove all personnel; in early 2014, Costa Rica brought Nicaragua to the ICJ over offshore oil concessions in the disputed region; Nicaragua filed a case against Colombia in 2013 over the delimitation of the Continental shelf beyond the 200 nautical miles from the Nicaraguan coast, as well as over the alleged violation by Colombia of Nicaraguan maritime space in the Caribbean Sea

Topic: NigerLibya claims about 25,000 sq km in a currently dormant dispute in the Tommo region; location of Benin-Niger-Nigeria tripoint is unresolved; only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty that also includes the Chad-Niger and Niger-Nigeria boundaries; the dispute with Burkina Faso was referred to the ICJ in 2010Libya claims about 25,000 sq km in a currently dormant dispute in the Tommo region; location of Benin-Niger-Nigeria tripoint is unresolved; only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty that also includes the Chad-Niger and Niger-Nigeria boundaries; the dispute with Burkina Faso was referred to the ICJ in 2010

Topic: NigeriaJoint Border Commission with Cameroon reviewed 2002 ICJ ruling on the entire boundary and bilaterally resolved differences, including June 2006 Greentree Agreement that immediately cedes sovereignty of the Bakassi Peninsula to Cameroon with a phaseout of Nigerian control within two years while resolving patriation issues; the ICJ ruled on an equidistance settlement of Cameroon-Equatorial Guinea-Nigeria maritime boundary in the Gulf of Guinea, but imprecisely defined coordinates in the ICJ decision and a sovereignty dispute between Equatorial Guinea and Cameroon over an island at the mouth of the Ntem River all contribute to the delay in implementation; only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty which also includes the Chad-Niger and Niger-Nigeria boundaries; location of Benin-Niger-Nigeria tripoint is unresolvedJoint Border Commission with Cameroon reviewed 2002 ICJ ruling on the entire boundary and bilaterally resolved differences, including June 2006 Greentree Agreement that immediately cedes sovereignty of the Bakassi Peninsula to Cameroon with a phaseout of Nigerian control within two years while resolving patriation issues; the ICJ ruled on an equidistance settlement of Cameroon-Equatorial Guinea-Nigeria maritime boundary in the Gulf of Guinea, but imprecisely defined coordinates in the ICJ decision and a sovereignty dispute between Equatorial Guinea and Cameroon over an island at the mouth of the Ntem River all contribute to the delay in implementation; only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty which also includes the Chad-Niger and Niger-Nigeria boundaries; location of Benin-Niger-Nigeria tripoint is unresolved

Topic: Niuenonenone

Topic: Norfolk Islandnonenone

Topic: North MacedoniaKosovo and North Macedonia completed demarcation of their boundary in September 2008Kosovo and North Macedonia completed demarcation of their boundary in September 2008

Topic: Northern Mariana Islandsnonenone

Topic: NorwayNorway asserts a territorial claim in Antarctica (Queen Maud Land and its continental shelf); Denmark (Greenland) and Norway have made submissions to the Commission on the Limits of the Continental Shelf (CLCS) and Russia is collecting additional data to augment its 2001 CLCS submission; Norway and Russia signed a comprehensive maritime boundary agreement in 2010Norway asserts a territorial claim in Antarctica (Queen Maud Land and its continental shelf); Denmark (Greenland) and Norway have made submissions to the Commission on the Limits of the Continental Shelf (CLCS) and Russia is collecting additional data to augment its 2001 CLCS submission; Norway and Russia signed a comprehensive maritime boundary agreement in 2010

Topic: Omanboundary agreement reportedly signed and ratified with UAE in 2003 for entire border, including Oman's Musandam Peninsula and Al Madhah exclave, but details of the alignment have not been made publicboundary agreement reportedly signed and ratified with UAE in 2003 for entire border, including Oman's Musandam Peninsula and Al Madhah exclave, but details of the alignment have not been made public

Topic: Pacific Oceansome maritime disputes (see littoral states)some maritime disputes (see littoral states)

Topic: Pakistanvarious talks and confidence-building measures cautiously have begun to defuse tensions over Kashmir, particularly since the October 2005 earthquake in the region; Kashmir nevertheless remains the site of the world's largest and most militarized territorial dispute with portions under the de facto administration of China (Aksai Chin), India (Jammu and Kashmir), and Pakistan (Azad Kashmir and Northern Areas); UN Military Observer Group in India and Pakistan has maintained a small group of peacekeepers since 1949; India does not recognize Pakistan's ceding historic Kashmir lands to China in 1964; India and Pakistan have maintained their 2004 cease-fire in Kashmir and initiated discussions on defusing the armed standoff in the Siachen glacier region; Pakistan protests India's fencing the highly militarized Line of Control and construction of the Baglihar Dam on the Chenab River in Jammu and Kashmir, which is part of the larger dispute on water sharing of the Indus River and its tributaries; to defuse tensions and prepare for discussions on a maritime boundary, India and Pakistan seek technical resolution of the disputed boundary in Sir Creek estuary at the mouth of the Rann of Kutch in the Arabian Sea; Pakistani maps continue to show the Junagadh claim in India's Gujarat State; since 2002, with UN assistance, Pakistan has repatriated 3.8 million Afghan refugees, leaving about 2.6 million; Pakistan has sent troops across and built fences along some remote tribal areas of its treaty-defined Durand Line border with Afghanistan, which serve as bases for foreign terrorists and other illegal activities; Afghan, Coalition, and Pakistan military meet periodically to clarify the alignment of the boundary on the ground and on mapsvarious talks and confidence-building measures cautiously have begun to defuse tensions over Kashmir, particularly since the October 2005 earthquake in the region; Kashmir nevertheless remains the site of the world's largest and most militarized territorial dispute with portions under the de facto administration of China (Aksai Chin), India (Jammu and Kashmir), and Pakistan (Azad Kashmir and Northern Areas); UN Military Observer Group in India and Pakistan has maintained a small group of peacekeepers since 1949; India does not recognize Pakistan's ceding historic Kashmir lands to China in 1964; India and Pakistan have maintained their 2004 cease-fire in Kashmir and initiated discussions on defusing the armed standoff in the Siachen glacier region; Pakistan protests India's fencing the highly militarized Line of Control and construction of the Baglihar Dam on the Chenab River in Jammu and Kashmir, which is part of the larger dispute on water sharing of the Indus River and its tributaries; to defuse tensions and prepare for discussions on a maritime boundary, India and Pakistan seek technical resolution of the disputed boundary in Sir Creek estuary at the mouth of the Rann of Kutch in the Arabian Sea; Pakistani maps continue to show the Junagadh claim in India's Gujarat State; since 2002, with UN assistance, Pakistan has repatriated 3.8 million Afghan refugees, leaving about 2.6 million; Pakistan has sent troops across and built fences along some remote tribal areas of its treaty-defined Durand Line border with Afghanistan, which serve as bases for foreign terrorists and other illegal activities; Afghan, Coalition, and Pakistan military meet periodically to clarify the alignment of the boundary on the ground and on maps

Topic: Palaumaritime delineation negotiations continue with Philippines, Indonesiamaritime delineation negotiations continue with Philippines, Indonesia

Topic: Panamaorganized illegal narcotics operations in Colombia operate within the remote border region with Panamaorganized illegal narcotics operations in Colombia operate within the remote border region with Panama

Topic: Papua New Guinearelies on assistance from Australia to keep out illegal cross-border activities from primarily Indonesia, including goods smuggling, illegal narcotics trafficking, and squatters and secessionistsrelies on assistance from Australia to keep out illegal cross-border activities from primarily Indonesia, including goods smuggling, illegal narcotics trafficking, and squatters and secessionists

Topic: Paracel Islandsoccupied by China, also claimed by Taiwan and Vietnamoccupied by China, also claimed by Taiwan and Vietnam

Topic: Paraguayunruly region at convergence of Argentina-Brazil-Paraguay borders is locus of money laundering, smuggling, arms and illegal narcotics trafficking, and fundraising for violent extremist organizationsunruly region at convergence of Argentina-Brazil-Paraguay borders is locus of money laundering, smuggling, arms and illegal narcotics trafficking, and fundraising for violent extremist organizations

Topic: PeruChile and Ecuador rejected Peru's November 2005 unilateral legislation to shift the axis of their joint treaty-defined maritime boundaries along the parallels of latitude to equidistance lines which favor Peru; organized illegal narcotics operations in Colombia have penetrated Peru's shared border; Peru rejects Bolivia's claim to restore maritime access through a sovereign corridor through Chile along the Peruvian borderChile and Ecuador rejected Peru's November 2005 unilateral legislation to shift the axis of their joint treaty-defined maritime boundaries along the parallels of latitude to equidistance lines which favor Peru; organized illegal narcotics operations in Colombia have penetrated Peru's shared border; Peru rejects Bolivia's claim to restore maritime access through a sovereign corridor through Chile along the Peruvian border

Topic: PhilippinesPhilippines claims sovereignty over Scarborough Reef (also claimed by China together with Taiwan) and over certain of the Spratly Islands, known locally as the Kalayaan (Freedom) Islands, also claimed by China, Malaysia, Taiwan, and Vietnam; the 2002 "Declaration on the Conduct of Parties in the South China Sea," has eased tensions in the Spratly Islands but falls short of a legally binding "code of conduct" desired by several of the disputants; in March 2005, the national oil companies of China, the Philippines, and Vietnam signed a joint accord to conduct marine seismic activities in the Spratly Islands; Philippines retains a dormant claim to Malaysia's Sabah State in northern Borneo based on the Sultanate of Sulu's granting the Philippines Government power of attorney to pursue a sovereignty claim on his behalf; maritime delimitation negotiations continue with PalauPhilippines claims sovereignty over Scarborough Reef (also claimed by China together with Taiwan) and over certain of the Spratly Islands, known locally as the Kalayaan (Freedom) Islands, also claimed by China, Malaysia, Taiwan, and Vietnam; the 2002 "Declaration on the Conduct of Parties in the South China Sea," has eased tensions in the Spratly Islands but falls short of a legally binding "code of conduct" desired by several of the disputants; in March 2005, the national oil companies of China, the Philippines, and Vietnam signed a joint accord to conduct marine seismic activities in the Spratly Islands; Philippines retains a dormant claim to Malaysia's Sabah State in northern Borneo based on the Sultanate of Sulu's granting the Philippines Government power of attorney to pursue a sovereignty claim on his behalf; maritime delimitation negotiations continue with Palau

Topic: Pitcairn Islandsnonenone

Topic: Polandas a member state that forms part of the EU's external border, Poland has implemented the strict Schengen border rules to restrict illegal immigration and trade along its eastern borders with Belarus and Ukraineas a member state that forms part of the EU's external border, Poland has implemented the strict Schengen border rules to restrict illegal immigration and trade along its eastern borders with Belarus and Ukraine

Topic: PortugalPortugal does not recognize Spanish sovereignty over the territory of Olivenza based on a difference of interpretation of the 1815 Congress of Vienna and the 1801 Treaty of BadajozPortugal does not recognize Spanish sovereignty over the territory of Olivenza based on a difference of interpretation of the 1815 Congress of Vienna and the 1801 Treaty of Badajoz

Topic: Puerto Ricoincreasing numbers of illegal migrants from the Dominican Republic cross the Mona Passage to Puerto Rico each year looking for workincreasing numbers of illegal migrants from the Dominican Republic cross the Mona Passage to Puerto Rico each year looking for work

Topic: Qatarnonenone

Topic: Romaniathe ICJ ruled largely in favor of Romania in its dispute submitted in 2004 over Ukrainian-administered Zmiyinyy/Serpilor (Snake) Island and Black Sea maritime boundary delimitation; Romania opposes Ukraine's reopening of a navigation canal from the Danube border through Ukraine to the Black Seathe ICJ ruled largely in favor of Romania in its dispute submitted in 2004 over Ukrainian-administered Zmiyinyy/Serpilor (Snake) Island and Black Sea maritime boundary delimitation; Romania opposes Ukraine's reopening of a navigation canal from the Danube border through Ukraine to the Black Sea

Topic: RussiaRussia remains concerned about the smuggling of poppy derivatives from Afghanistan through Central Asian countries; China and Russia have demarcated the once disputed islands at the Amur and Ussuri confluence and in the Argun River in accordance with the 2004 Agreement, ending their centuries-long border disputes; the sovereignty dispute over the islands of Etorofu, Kunashiri, Shikotan, and the Habomai group, known in Japan as the "Northern Territories" and in Russia as the "Southern Kurils," occupied by the Soviet Union in 1945, now administered by Russia, and claimed by Japan, remains the primary sticking point to signing a peace treaty formally ending World War II hostilities; Russia's military support and subsequent recognition of Abkhazia and South Ossetia independence in 2008 continue to sour relations with Georgia; Azerbaijan, Kazakhstan, and Russia ratified Caspian seabed delimitation treaties based on equidistance, while Iran continues to insist on a one-fifth slice of the sea; Norway and Russia signed a comprehensive maritime boundary agreement in 2010; various groups in Finland advocate restoration of Karelia (Kareliya) and other areas ceded to the Soviet Union following World War II but the Finnish Government asserts no territorial demands; Russia and Estonia signed a technical border agreement in May 2005, but Russia recalled its signature in June 2005 after the Estonian parliament added to its domestic ratification act a historical preamble referencing the Soviet occupation and Estonia's pre-war borders under the 1920 Treaty of Tartu; Russia contends that the preamble allows Estonia to make territorial claims on Russia in the future, while Estonian officials deny that the preamble has any legal impact on the treaty text; Russia demands better treatment of the Russian-speaking population in Estonia and Latvia; Russia remains involved in the conflict in eastern Ukraine while also occupying Ukraine’s territory of Crimea; Lithuania and Russia committed to demarcating their boundary in 2006 in accordance with the land and maritime treaty ratified by Russia in May 2003 and by Lithuania in 1999; Lithuania operates a simplified transit regime for Russian nationals traveling from the Kaliningrad coastal exclave into Russia, while still conforming, as an EU member state with an EU external border, where strict Schengen border rules apply; preparations for the demarcation delimitation of land boundary with Ukraine have commenced; the dispute over the boundary between Russia and Ukraine through the Kerch Strait and Sea of Azov is suspended due to the occupation of Crimea by Russia; Kazakhstan and Russia boundary delimitation was ratified on November 2005 and field demarcation should commence in 2007; Russian Duma has not yet ratified 1990 Bering Sea Maritime Boundary Agreement with the US; Denmark (Greenland) and Norway have made submissions to the Commission on the Limits of the Continental Shelf (CLCS) and Russia is collecting additional data to augment its 2001 CLCS submissionRussia remains concerned about the smuggling of poppy derivatives from Afghanistan through Central Asian countries; China and Russia have demarcated the once disputed islands at the Amur and Ussuri confluence and in the Argun River in accordance with the 2004 Agreement, ending their centuries-long border disputes; the sovereignty dispute over the islands of Etorofu, Kunashiri, Shikotan, and the Habomai group, known in Japan as the "Northern Territories" and in Russia as the "Southern Kurils," occupied by the Soviet Union in 1945, now administered by Russia, and claimed by Japan, remains the primary sticking point to signing a peace treaty formally ending World War II hostilities; Russia's military support and subsequent recognition of Abkhazia and South Ossetia independence in 2008 continue to sour relations with Georgia; Azerbaijan, Kazakhstan, and Russia ratified Caspian seabed delimitation treaties based on equidistance, while Iran continues to insist on a one-fifth slice of the sea; Norway and Russia signed a comprehensive maritime boundary agreement in 2010; various groups in Finland advocate restoration of Karelia (Kareliya) and other areas ceded to the Soviet Union following World War II but the Finnish Government asserts no territorial demands; Russia and Estonia signed a technical border agreement in May 2005, but Russia recalled its signature in June 2005 after the Estonian parliament added to its domestic ratification act a historical preamble referencing the Soviet occupation and Estonia's pre-war borders under the 1920 Treaty of Tartu; Russia contends that the preamble allows Estonia to make territorial claims on Russia in the future, while Estonian officials deny that the preamble has any legal impact on the treaty text; Russia demands better treatment of the Russian-speaking population in Estonia and Latvia; Russia remains involved in the conflict in eastern Ukraine while also occupying Ukraine’s territory of Crimea; Lithuania and Russia committed to demarcating their boundary in 2006 in accordance with the land and maritime treaty ratified by Russia in May 2003 and by Lithuania in 1999; Lithuania operates a simplified transit regime for Russian nationals traveling from the Kaliningrad coastal exclave into Russia, while still conforming, as an EU member state with an EU external border, where strict Schengen border rules apply; preparations for the demarcation delimitation of land boundary with Ukraine have commenced; the dispute over the boundary between Russia and Ukraine through the Kerch Strait and Sea of Azov is suspended due to the occupation of Crimea by Russia; Kazakhstan and Russia boundary delimitation was ratified on November 2005 and field demarcation should commence in 2007; Russian Duma has not yet ratified 1990 Bering Sea Maritime Boundary Agreement with the US; Denmark (Greenland) and Norway have made submissions to the Commission on the Limits of the Continental Shelf (CLCS) and Russia is collecting additional data to augment its 2001 CLCS submission

Topic: RwandaRwanda-Burundi: Burundi's Ngozi province and Rwanda's Butare province dispute the two-kilometer-square hilly farmed area of Sabanerwa in the Rukurazi Valley where the Akanyaru/Kanyaru River shifted its course southward after heavy rains in 1965 around Kibinga Hill in Rwanda's Butare Province

Rwanda-Democratic Republic of Congo (DRC): the 2005 DRC and Rwanda border verification mechanism to stem rebel actions on both sides of the border remains in place

Rwanda-Uganda: a joint technical committee established in 2007 to demarcate sections of the border


Rwanda-Burundi: Burundi's Ngozi province and Rwanda's Butare province dispute the two-kilometer-square hilly farmed area of Sabanerwa in the Rukurazi Valley where the Akanyaru/Kanyaru River shifted its course southward after heavy rains in 1965 around Kibinga Hill in Rwanda's Butare Province

Rwanda-Democratic Republic of Congo (DRC): the 2005 DRC and Rwanda border verification mechanism to stem rebel actions on both sides of the border remains in place

Rwanda-Uganda: a joint technical committee established in 2007 to demarcate sections of the border




Topic: Saint Helena, Ascension, and Tristan da Cunhanonenone

Topic: Saint Kitts and Nevisjoins other Caribbean states to counter Venezuela's claim that Aves Island sustains human habitation, a criterion under UN Convention on the Law of the Sea, which permits Venezuela to extend its EEZ/continental shelf over a large portion of the eastern Caribbean Seajoins other Caribbean states to counter Venezuela's claim that Aves Island sustains human habitation, a criterion under UN Convention on the Law of the Sea, which permits Venezuela to extend its EEZ/continental shelf over a large portion of the eastern Caribbean Sea

Topic: Saint Luciajoins other Caribbean states to counter Venezuela's claim that Aves Island sustains human habitation, a criterion under UN Convention on the Law of the Sea, which permits Venezuela to extend its EEZ/continental shelf over a large portion of the eastern Caribbean Seajoins other Caribbean states to counter Venezuela's claim that Aves Island sustains human habitation, a criterion under UN Convention on the Law of the Sea, which permits Venezuela to extend its EEZ/continental shelf over a large portion of the eastern Caribbean Sea

Topic: Saint Pierre and Miquelonnonenone

Topic: Saint Vincent and the Grenadinesjoins other Caribbean states to counter Venezuela's claim that Aves Island sustains human habitation, a criterion under UN Convention on the Law of the Sea, which permits Venezuela to extend its EEZ/continental shelf over a large portion of the eastern Caribbean Seajoins other Caribbean states to counter Venezuela's claim that Aves Island sustains human habitation, a criterion under UN Convention on the Law of the Sea, which permits Venezuela to extend its EEZ/continental shelf over a large portion of the eastern Caribbean Sea

Topic: Samoanonenone

Topic: San Marinononenone

Topic: Sao Tome and Principenonenone

Topic: Saudi ArabiaSaudi Arabia has reinforced its concrete-filled security barrier along sections of the now fully demarcated border with Yemen to stem illegal cross-border activities; Kuwait and Saudi Arabia continue discussions on a maritime boundary with IranSaudi Arabia has reinforced its concrete-filled security barrier along sections of the now fully demarcated border with Yemen to stem illegal cross-border activities; Kuwait and Saudi Arabia continue discussions on a maritime boundary with Iran

Topic: Senegalcross-border trafficking in persons, timber, wildlife, and cannabis; rebels from the Movement of Democratic Forces in the Casamance find refuge in Guinea-Bissaucross-border trafficking in persons, timber, wildlife, and cannabis; rebels from the Movement of Democratic Forces in the Casamance find refuge in Guinea-Bissau

Topic: SerbiaSerbia with several other states protest the US and other states' recognition of Kosovo's declaration of its status as a sovereign and independent state in February 2008; ethnic Serbian municipalities along Kosovo's northern border challenge final status of Kosovo-Serbia boundary; several thousand NATO-led Kosovo Force peacekeepers under UN Interim Administration Mission in Kosovo authority continue to keep the peace within Kosovo between the ethnic Albanian majority and the Serb minority in Kosovo; Serbia delimited about half of the boundary with Bosnia and Herzegovina, but sections along the Drina River remain in disputeSerbia with several other states protest the US and other states' recognition of Kosovo's declaration of its status as a sovereign and independent state in February 2008; ethnic Serbian municipalities along Kosovo's northern border challenge final status of Kosovo-Serbia boundary; several thousand NATO-led Kosovo Force peacekeepers under UN Interim Administration Mission in Kosovo authority continue to keep the peace within Kosovo between the ethnic Albanian majority and the Serb minority in Kosovo; Serbia delimited about half of the boundary with Bosnia and Herzegovina, but sections along the Drina River remain in dispute

Topic: SeychellesMauritius and Seychelles claim the Chagos Islands (UK-administered British Indian Ocean Territory)Mauritius and Seychelles claim the Chagos Islands (UK-administered British Indian Ocean Territory)

Topic: Sierra LeoneSierra Leone opposes Guinean troops' continued occupation of Yenga, a small village on the Makona River that serves as a border with Guinea; Guinea's forces came to Yenga in the mid-1990s to help the Sierra Leonean military to suppress rebels and to secure their common border but have remained there even after both countries signed a 2005 agreement acknowledging that Yenga belonged to Sierra Leone; in 2012, the two sides signed a declaration to demilitarize the areaSierra Leone opposes Guinean troops' continued occupation of Yenga, a small village on the Makona River that serves as a border with Guinea; Guinea's forces came to Yenga in the mid-1990s to help the Sierra Leonean military to suppress rebels and to secure their common border but have remained there even after both countries signed a 2005 agreement acknowledging that Yenga belonged to Sierra Leone; in 2012, the two sides signed a declaration to demilitarize the area

Topic: Singaporedisputes with Malaysia over territorial waters, airspace, the price of fresh water delivered to Singapore from Malaysia, Singapore's extensive land reclamation works, bridge construction, and maritime boundaries in the Johor and Singapore Straits; in 2008, ICJ awarded sovereignty of Pedra Branca (Pulau Batu Puteh/Horsburgh Island) to Singapore, and Middle Rocks to Malaysia, but did not rule on maritime regimes, boundaries, or disposition of South Ledge; Indonesia and Singapore continue to work on finalization of their 1973 maritime boundary agreement by defining unresolved areas north of Indonesia's Batam Island; piracy remains a problem in the Malacca Straitdisputes with Malaysia over territorial waters, airspace, the price of fresh water delivered to Singapore from Malaysia, Singapore's extensive land reclamation works, bridge construction, and maritime boundaries in the Johor and Singapore Straits; in 2008, ICJ awarded sovereignty of Pedra Branca (Pulau Batu Puteh/Horsburgh Island) to Singapore, and Middle Rocks to Malaysia, but did not rule on maritime regimes, boundaries, or disposition of South Ledge; Indonesia and Singapore continue to work on finalization of their 1973 maritime boundary agreement by defining unresolved areas north of Indonesia's Batam Island; piracy remains a problem in the Malacca Strait

Topic: Slovakiabilateral government, legal, technical and economic working group negotiations continued between Slovakia and Hungary over Hungary's completion of its portion of the Gabcikovo-Nagymaros hydroelectric dam project along the Danube; as a member state that forms part of the EU's external border, Slovakia has implemented strict Schengen border rulesbilateral government, legal, technical and economic working group negotiations continued between Slovakia and Hungary over Hungary's completion of its portion of the Gabcikovo-Nagymaros hydroelectric dam project along the Danube; as a member state that forms part of the EU's external border, Slovakia has implemented strict Schengen border rules

Topic: Sloveniasince the breakup of Yugoslavia in the early 1990s, Croatia and Slovenia have each claimed sovereignty over Piran Bay and four villages, and Slovenia has objected to Croatia's claim of an exclusive economic zone in the Adriatic Sea; in 2009, however Croatia and Slovenia signed a binding international arbitration agreement to define their disputed land and maritime borders, which led Slovenia to lift its objections to Croatia joining the EU; in June 2017 the arbitration panel issued a ruling on the border that Croatia has not implemented; as a member state that forms part of the EU's external border, Slovenia has implemented the strict Schengen border rules to curb illegal migration and commerce through southeastern Europe while encouraging close cross-border ties with Croatia; Slovenia continues to impose a hard border Schengen regime with Croatia, which joined the EU in 2013 but has not yet fulfilled Schengen requirementssince the breakup of Yugoslavia in the early 1990s, Croatia and Slovenia have each claimed sovereignty over Piran Bay and four villages, and Slovenia has objected to Croatia's claim of an exclusive economic zone in the Adriatic Sea; in 2009, however Croatia and Slovenia signed a binding international arbitration agreement to define their disputed land and maritime borders, which led Slovenia to lift its objections to Croatia joining the EU; in June 2017 the arbitration panel issued a ruling on the border that Croatia has not implemented; as a member state that forms part of the EU's external border, Slovenia has implemented the strict Schengen border rules to curb illegal migration and commerce through southeastern Europe while encouraging close cross-border ties with Croatia; Slovenia continues to impose a hard border Schengen regime with Croatia, which joined the EU in 2013 but has not yet fulfilled Schengen requirements

Topic: Solomon Islandssince 2003, the Regional Assistance Mission to Solomon Islands, consisting of police, military, and civilian advisors drawn from 15 countries, has assisted in reestablishing and maintaining civil and political order while reinforcing regional stability and securitysince 2003, the Regional Assistance Mission to Solomon Islands, consisting of police, military, and civilian advisors drawn from 15 countries, has assisted in reestablishing and maintaining civil and political order while reinforcing regional stability and security

Topic: SomaliaEthiopian forces invaded southern Somalia and routed Islamist Courts from Mogadishu in January 2007; "Somaliland" secessionists provide port facilities in Berbera to landlocked Ethiopia and have established commercial ties with other regional states; "Puntland" and "Somaliland" "governments" seek international support in their secessionist aspirations and overlapping border claims; the undemarcated former British administrative line has little meaning as a political separation to rival clans within Ethiopia's Ogaden and southern Somalia's Oromo region; Kenya works hard to prevent the clan and militia fighting in Somalia from spreading south across the border, which has long been open to nomadic pastoralistsEthiopian forces invaded southern Somalia and routed Islamist Courts from Mogadishu in January 2007; "Somaliland" secessionists provide port facilities in Berbera to landlocked Ethiopia and have established commercial ties with other regional states; "Puntland" and "Somaliland" "governments" seek international support in their secessionist aspirations and overlapping border claims; the undemarcated former British administrative line has little meaning as a political separation to rival clans within Ethiopia's Ogaden and southern Somalia's Oromo region; Kenya works hard to prevent the clan and militia fighting in Somalia from spreading south across the border, which has long been open to nomadic pastoralists

Topic: South AfricaSouth Africa has placed military units to assist police operations along the border of Lesotho, Zimbabwe, and Mozambique to control smuggling, poaching, and illegal migration; the governments of South Africa and Namibia have not signed or ratified the text of the 1994 Surveyor's General agreement placing the boundary in the middle of the Orange RiverSouth Africa has placed military units to assist police operations along the border of Lesotho, Zimbabwe, and Mozambique to control smuggling, poaching, and illegal migration; the governments of South Africa and Namibia have not signed or ratified the text of the 1994 Surveyor's General agreement placing the boundary in the middle of the Orange River

Topic: South Georgia and South Sandwich IslandsArgentina, which claims the islands in its constitution and briefly occupied them by force in 1982, agreed in 1995 to no longer seek settlement by forceArgentina, which claims the islands in its constitution and briefly occupied them by force in 1982, agreed in 1995 to no longer seek settlement by force

Topic: South SudanSouth Sudan- Central African Republic: periodic violent skirmishes persist among related pastoral populations along the border with the Central African Republic over water and grazing rights

South Sudan-Kenya: the boundary that separates Kenya and South Sudan's sovereignty is unclear in the "Ilemi Triangle," which Kenya has administered since colonial times South Sudan-Sudan: present boundary represents 1 January 1956 alignment, which clearly placed the Kafia Kingi area (adjacent to Central African Republic) within South Sudan as shown on US maps although it is mostly occupied by Sudan; final alignment pending negotiations and demarcation; the final sovereignty status of Abyei Area pending negotiations between South Sudan and Sudan; Sudan accuses South Sudan of supporting Sudanese rebel groupsSouth Sudan- Central African Republic: periodic violent skirmishes persist among related pastoral populations along the border with the Central African Republic over water and grazing rights

South Sudan-Kenya: the boundary that separates Kenya and South Sudan's sovereignty is unclear in the "Ilemi Triangle," which Kenya has administered since colonial timesSouth Sudan-Sudan: present boundary represents 1 January 1956 alignment, which clearly placed the Kafia Kingi area (adjacent to Central African Republic) within South Sudan as shown on US maps although it is mostly occupied by Sudan; final alignment pending negotiations and demarcation; the final sovereignty status of Abyei Area pending negotiations between South Sudan and Sudan; Sudan accuses South Sudan of supporting Sudanese rebel groups

Topic: Southern OceanAntarctic Treaty defers claims (see Antarctica entry), but Argentina, Australia, Chile, France, NZ, Norway, and UK assert claims (some overlapping), including the continental shelf in the Southern Ocean; several states have expressed an interest in extending those continental shelf claims under the UN Convention on the Law of the Sea to include undersea ridges; the US and most other states do not recognize the land or maritime claims of other states and have made no claims themselves (the US and Russia have reserved the right to do so)Antarctic Treaty defers claims (see Antarctica entry), but Argentina, Australia, Chile, France, NZ, Norway, and UK assert claims (some overlapping), including the continental shelf in the Southern Ocean; several states have expressed an interest in extending those continental shelf claims under the UN Convention on the Law of the Sea to include undersea ridges; the US and most other states do not recognize the land or maritime claims of other states and have made no claims themselves (the US and Russia have reserved the right to do so)

Topic: Spainin 2002, Gibraltar residents voted overwhelmingly by referendum to reject any "shared sovereignty" arrangement; the Government of Gibraltar insists on equal participation in talks between the UK and Spain; Spain disapproves of UK plans to grant Gibraltar greater autonomy; after voters in the UK chose to leave the EU in a June 2016 referendum, Spain again proposed shared sovereignty of Gibraltar; UK officials rejected Spain’s joint sovereignty proposal; Morocco protests Spain's control over the coastal enclaves of Ceuta, Melilla, and the islands of Penon de Velez de la Gomera, Penon de Alhucemas, and Islas Chafarinas, and surrounding waters; both countries claim Isla Perejil (Leila Island); Morocco serves as the primary launching site of illegal migration into Spain from North Africa; Portugal does not recognize Spanish sovereignty over the territory of Olivenza based on a difference of interpretation of the 1815 Congress of Vienna and the 1801 Treaty of Badajozin 2002, Gibraltar residents voted overwhelmingly by referendum to reject any "shared sovereignty" arrangement; the Government of Gibraltar insists on equal participation in talks between the UK and Spain; Spain disapproves of UK plans to grant Gibraltar greater autonomy; after voters in the UK chose to leave the EU in a June 2016 referendum, Spain again proposed shared sovereignty of Gibraltar; UK officials rejected Spain’s joint sovereignty proposal; Morocco protests Spain's control over the coastal enclaves of Ceuta, Melilla, and the islands of Penon de Velez de la Gomera, Penon de Alhucemas, and Islas Chafarinas, and surrounding waters; both countries claim Isla Perejil (Leila Island); Morocco serves as the primary launching site of illegal migration into Spain from North Africa; Portugal does not recognize Spanish sovereignty over the territory of Olivenza based on a difference of interpretation of the 1815 Congress of Vienna and the 1801 Treaty of Badajoz

Topic: Spratly Islandsall of the Spratly Islands are claimed by China (including Taiwan) and Vietnam; parts of them are claimed by Brunei, Malaysia and the Philippines; despite no public territorial claim to Louisa Reef, Brunei implicitly lays claim by including it within the natural prolongation of its continental shelf and basis for a seabed median with Vietnam; claimants in November 2002 signed the "Declaration on the Conduct of Parties in the South China Sea," which has eased tensions but falls short of a legally binding "code of conduct"; in March 2005, the national oil companies of China, the Philippines, and Vietnam signed a joint accord to conduct marine seismic activities in the Spratly Islandsall of the Spratly Islands are claimed by China (including Taiwan) and Vietnam; parts of them are claimed by Brunei, Malaysia and the Philippines; despite no public territorial claim to Louisa Reef, Brunei implicitly lays claim by including it within the natural prolongation of its continental shelf and basis for a seabed median with Vietnam; claimants in November 2002 signed the "Declaration on the Conduct of Parties in the South China Sea," which has eased tensions but falls short of a legally binding "code of conduct"; in March 2005, the national oil companies of China, the Philippines, and Vietnam signed a joint accord to conduct marine seismic activities in the Spratly Islands

Topic: Sri Lankanonenone

Topic: Sudanthe effects of Sudan's ethnic and rebel militia fighting since the mid-20th century have penetrated all of the neighboring states; Chad wishes to be a helpful mediator in resolving the Darfur conflict, and in 2010 established a joint border monitoring force with Sudan, which has helped to reduce cross-border banditry and violence; civil unrest in eastern Sudan has hampered efforts to demarcate the porous boundary with Ethiopia; as of early 2019, more than 590,000 Sudanese refugees are being hosted in the Central African Republic, Chad, Egypt, Ethiopia, Kenya, and South Sudan; Sudan, in turn, is hosting more than 975,000 refugees and asylum seekers, including more than 845,000 from South Sudan; Sudan accuses South Sudan of supporting Sudanese rebel groups; Sudan claims but Egypt de facto administers security and economic development of the Halaib region north of the 22nd parallel boundary; periodic violent skirmishes with Sudanese residents over water and grazing rights persist among related pastoral populations along the border with the Central African Republic; South Sudan-Sudan boundary represents 1 January 1956 alignment, final alignment pending negotiations and demarcation; final sovereignty status of Abyei Area pending negotiations between South Sudan and Sudanthe effects of Sudan's ethnic and rebel militia fighting since the mid-20th century have penetrated all of the neighboring states; Chad wishes to be a helpful mediator in resolving the Darfur conflict, and in 2010 established a joint border monitoring force with Sudan, which has helped to reduce cross-border banditry and violence; civil unrest in eastern Sudan has hampered efforts to demarcate the porous boundary with Ethiopia; as of early 2019, more than 590,000 Sudanese refugees are being hosted in the Central African Republic, Chad, Egypt, Ethiopia, Kenya, and South Sudan; Sudan, in turn, is hosting more than 975,000 refugees and asylum seekers, including more than 845,000 from South Sudan; Sudan accuses South Sudan of supporting Sudanese rebel groups; Sudan claims but Egypt de facto administers security and economic development of the Halaib region north of the 22nd parallel boundary; periodic violent skirmishes with Sudanese residents over water and grazing rights persist among related pastoral populations along the border with the Central African Republic; South Sudan-Sudan boundary represents 1 January 1956 alignment, final alignment pending negotiations and demarcation; final sovereignty status of Abyei Area pending negotiations between South Sudan and Sudan

Topic: Surinamearea claimed by French Guiana between Riviere Litani and Riviere Marouini (both headwaters of the Lawa); Suriname claims a triangle of land between the New and Kutari/Koetari rivers in a historic dispute over the headwaters of the Courantyne; Guyana seeks UN Convention on the Law of the Sea arbitration to resolve the longstanding dispute with Suriname over the axis of the territorial sea boundary in potentially oil-rich watersarea claimed by French Guiana between Riviere Litani and Riviere Marouini (both headwaters of the Lawa); Suriname claims a triangle of land between the New and Kutari/Koetari rivers in a historic dispute over the headwaters of the Courantyne; Guyana seeks UN Convention on the Law of the Sea arbitration to resolve the longstanding dispute with Suriname over the axis of the territorial sea boundary in potentially oil-rich waters

Topic: Svalbarddespite recent discussions, Russia and Norway dispute their maritime limits in the Barents Sea and Russia's fishing rights beyond Svalbard's territorial limits within the Svalbard Treaty zonedespite recent discussions, Russia and Norway dispute their maritime limits in the Barents Sea and Russia's fishing rights beyond Svalbard's territorial limits within the Svalbard Treaty zone

Topic: Swedennonenone

Topic: Switzerlandnonenone

Topic: SyriaGolan Heights is Israeli-controlled with UN Disengagement Observer Force (UNDOF) patrolling a buffer zone since 1974; lacking a treaty or other documentation describing the boundary, portions of the Lebanon-Syria boundary are unclear with several sections in dispute; since 2000, Lebanon has claimed Shab'a Farms in the Golan Heights; 2004 Agreement and pending demarcation would settle border dispute with JordanGolan Heights is Israeli-controlled with UN Disengagement Observer Force (UNDOF) patrolling a buffer zone since 1974; lacking a treaty or other documentation describing the boundary, portions of the Lebanon-Syria boundary are unclear with several sections in dispute; since 2000, Lebanon has claimed Shab'a Farms in the Golan Heights; 2004 Agreement and pending demarcation would settle border dispute with Jordan

Topic: Taiwaninvolved in complex dispute with Brunei, China, Malaysia, the Philippines, and Vietnam over the Spratly Islands, and with China and the Philippines over Scarborough Reef; the 2002 "Declaration on the Conduct of Parties in the South China Sea" has eased tensions but falls short of a legally binding "code of conduct" desired by several of the disputants; Paracel Islands are occupied by China, but claimed by Taiwan and Vietnam; in 2003, China and Taiwan became more vocal in rejecting both Japan's claims to the uninhabited islands of the Senkaku-shoto (Diaoyu Tai) and Japan's unilaterally declared exclusive economic zone in the East China Sea where all parties engage in hydrocarbon prospectinginvolved in complex dispute with Brunei, China, Malaysia, the Philippines, and Vietnam over the Spratly Islands, and with China and the Philippines over Scarborough Reef; the 2002 "Declaration on the Conduct of Parties in the South China Sea" has eased tensions but falls short of a legally binding "code of conduct" desired by several of the disputants; Paracel Islands are occupied by China, but claimed by Taiwan and Vietnam; in 2003, China and Taiwan became more vocal in rejecting both Japan's claims to the uninhabited islands of the Senkaku-shoto (Diaoyu Tai) and Japan's unilaterally declared exclusive economic zone in the East China Sea where all parties engage in hydrocarbon prospecting

Topic: Tajikistanin 2006, China and Tajikistan pledged to commence demarcation of the revised boundary agreed to in the delimitation of 2002; talks continue with Uzbekistan to delimit border and remove minefields; disputes in Isfara Valley delay delimitation with Kyrgyzstanin 2006, China and Tajikistan pledged to commence demarcation of the revised boundary agreed to in the delimitation of 2002; talks continue with Uzbekistan to delimit border and remove minefields; disputes in Isfara Valley delay delimitation with Kyrgyzstan

Topic: Tanzaniadispute with Malawi over the boundary in Lake Nyasa (Lake Malawi) and the meandering Songwe River; Malawi contends that the entire lake up to the Tanzanian shoreline is its territory, while Tanzania claims the border is in the center of the lake; the conflict was reignited in 2012 when Malawi awarded a license to a British company for oil exploration in the lakedispute with Malawi over the boundary in Lake Nyasa (Lake Malawi) and the meandering Songwe River; Malawi contends that the entire lake up to the Tanzanian shoreline is its territory, while Tanzania claims the border is in the center of the lake; the conflict was reignited in 2012 when Malawi awarded a license to a British company for oil exploration in the lake

Topic: Thailandseparatist violence in Thailand's predominantly Malay-Muslim southern provinces prompt border closures and controls with Malaysia to stem insurgent activities; Southeast Asian states have enhanced border surveillance to check the spread of avian flu; talks continue on completion of demarcation with Laos but disputes remain over several islands in the Mekong River; despite continuing border committee talks, Thailand must deal with Karen and other ethnic rebels, refugees, and illegal cross-border activities; Cambodia and Thailand dispute sections of boundary; in 2011, Thailand and Cambodia resorted to arms in the dispute over the location of the boundary on the precipice surmounted by Preah Vihear temple ruins, awarded to Cambodia by ICJ decision in 1962 and part of a planned UN World Heritage site; Thailand is studying the feasibility of jointly constructing the Hatgyi Dam on the Salween river near the border with Burma; in 2004, international environmentalist pressure prompted China to halt construction of 13 dams on the Salween River that flows through China, Burma, and Thailand; approximately 100,000 mostly Karen refugees fleeing civil strife, political upheaval and economic stagnation in Burma live in remote camps in Thailand near the borderseparatist violence in Thailand's predominantly Malay-Muslim southern provinces prompt border closures and controls with Malaysia to stem insurgent activities; Southeast Asian states have enhanced border surveillance to check the spread of avian flu; talks continue on completion of demarcation with Laos but disputes remain over several islands in the Mekong River; despite continuing border committee talks, Thailand must deal with Karen and other ethnic rebels, refugees, and illegal cross-border activities; Cambodia and Thailand dispute sections of boundary; in 2011, Thailand and Cambodia resorted to arms in the dispute over the location of the boundary on the precipice surmounted by Preah Vihear temple ruins, awarded to Cambodia by ICJ decision in 1962 and part of a planned UN World Heritage site; Thailand is studying the feasibility of jointly constructing the Hatgyi Dam on the Salween river near the border with Burma; in 2004, international environmentalist pressure prompted China to halt construction of 13 dams on the Salween River that flows through China, Burma, and Thailand; approximately 100,000 mostly Karen refugees fleeing civil strife, political upheaval and economic stagnation in Burma live in remote camps in Thailand near the border

Topic: Timor-Lestethree stretches of land borders with Indonesia have yet to be delimited, two of which are in the Oecussi exclave area, and no maritime or Economic Exclusion Zone boundaries have been established between the countries; maritime boundaries with Indonesia remain unresolved; Timor-Leste and Australia reached agreement on a treaty delimiting a permanent maritime boundary in March 2018; the treaty will enter into force once ratified by the two countries' parliamentsthree stretches of land borders with Indonesia have yet to be delimited, two of which are in the Oecussi exclave area, and no maritime or Economic Exclusion Zone boundaries have been established between the countries; maritime boundaries with Indonesia remain unresolved; Timor-Leste and Australia reached agreement on a treaty delimiting a permanent maritime boundary in March 2018; the treaty will enter into force once ratified by the two countries' parliaments

Topic: Togoin 2001, Benin claimed Togo moved boundary monuments - joint commission continues to resurvey the boundary; talks continue between Benin and Togo on funding the Adjrala hydroelectric dam on the Mona Riverin 2001, Benin claimed Togo moved boundary monuments - joint commission continues to resurvey the boundary; talks continue between Benin and Togo on funding the Adjrala hydroelectric dam on the Mona River

Topic: TokelauTokelau included American Samoa's Swains Island (Olosega) in its 2006 draft independence constitutionTokelau included American Samoa's Swains Island (Olosega) in its 2006 draft independence constitution

Topic: Tongamaritime boundary dispute with Fiji  maritime boundary dispute with Fiji 

Topic: Trinidad and TobagoBarbados and Trinidad and Tobago abide by the April 2006 Permanent Court of Arbitration decision delimiting a maritime boundary and limiting catches of flying fish in Trinidad and Tobago's EEZ; in 2005, Barbados and Trinidad and Tobago agreed to compulsory international arbitration under UN Convention on the Law of the Sea challenging whether the northern limit of Trinidad and Tobago's and Venezuela's maritime boundary extends into Barbadian waters; Guyana has expressed its intention to include itself in the arbitration, as the Trinidad and Tobago-Venezuela maritime boundary may also extend into its watersBarbados and Trinidad and Tobago abide by the April 2006 Permanent Court of Arbitration decision delimiting a maritime boundary and limiting catches of flying fish in Trinidad and Tobago's EEZ; in 2005, Barbados and Trinidad and Tobago agreed to compulsory international arbitration under UN Convention on the Law of the Sea challenging whether the northern limit of Trinidad and Tobago's and Venezuela's maritime boundary extends into Barbadian waters; Guyana has expressed its intention to include itself in the arbitration, as the Trinidad and Tobago-Venezuela maritime boundary may also extend into its waters

Topic: Tunisianonenone

Topic: Turkeycomplex maritime, air, and territorial disputes with Greece in the Aegean Sea; status of north Cyprus question remains; Turkey has expressed concern over the status of Kurds in Iraq; in 2009, Swiss mediators facilitated an accord reestablishing diplomatic ties between Armenia and Turkey, but neither side has ratified the agreement and the rapprochement effort has faltered; Turkish authorities have complained that blasting from quarries in Armenia might be damaging the medieval ruins of Ani, on the other side of the Arpacay valleycomplex maritime, air, and territorial disputes with Greece in the Aegean Sea; status of north Cyprus question remains; Turkey has expressed concern over the status of Kurds in Iraq; in 2009, Swiss mediators facilitated an accord reestablishing diplomatic ties between Armenia and Turkey, but neither side has ratified the agreement and the rapprochement effort has faltered; Turkish authorities have complained that blasting from quarries in Armenia might be damaging the medieval ruins of Ani, on the other side of the Arpacay valley

Topic: Turkmenistancotton monoculture in Uzbekistan and Turkmenistan creates water-sharing difficulties for Amu Darya river states; field demarcation of the boundaries with Kazakhstan commenced in 2005; bilateral talks continue with Azerbaijan on dividing the seabed and contested oilfields in the middle of the Caspiancotton monoculture in Uzbekistan and Turkmenistan creates water-sharing difficulties for Amu Darya river states; field demarcation of the boundaries with Kazakhstan commenced in 2005; bilateral talks continue with Azerbaijan on dividing the seabed and contested oilfields in the middle of the Caspian

Topic: Turks and Caicos Islandshave received Haitians fleeing economic and civil disorderhave received Haitians fleeing economic and civil disorder

Topic: Tuvalunonenone

Topic: UgandaUganda is subject to armed fighting among hostile ethnic groups, rebels, armed gangs, militias, and various government forces that extend across its borders

Uganda-Kenya: Kenya and Uganda have begun a joint demarcation of the boundary in 2021 

Uganda-Rwanda: a joint technical committee established in 2007 to demarcate sections of the border

Uganda-Democratic Republic of Congo(DROC): Uganda rejects the DROC claim to Margherita Peak in the Rwenzori mountains and considers it a boundary divide; there is tension and violence on Lake Albert over prospective oil reserves at the mouth of the Semliki River

Uganda-South Sudan: Government of South Sudan protests Lord's Resistance Army operations in western Equatorial State, displacing and driving out local populations and stealing grain storesUganda is subject to armed fighting among hostile ethnic groups, rebels, armed gangs, militias, and various government forces that extend across its borders

Uganda-Kenya: Kenya and Uganda have begun a joint demarcation of the boundary in 2021 

Uganda-Rwanda: a joint technical committee established in 2007 to demarcate sections of the border

Uganda-Democratic Republic of Congo(DROC): Uganda rejects the DROC claim to Margherita Peak in the Rwenzori mountains and considers it a boundary divide; there is tension and violence on Lake Albert over prospective oil reserves at the mouth of the Semliki River

Uganda-South Sudan: Government of South Sudan protests Lord's Resistance Army operations in western Equatorial State, displacing and driving out local populations and stealing grain stores

Topic: Ukraine1997 boundary delimitation treaty with Belarus remains unratified due to unresolved financial claims, stalling demarcation and reducing border security; delimitation of land boundary with Russia is complete and demarcation began in 2012; the dispute over the boundary between Russia and Ukraine through the Kerch Strait and Sea of Azov is suspended due to the occupation of Crimea by Russia; Ukraine and Moldova signed an agreement officially delimiting their border in 1999, but the border has not been demarcated due to Moldova's difficulties with the break-away region of Transnistria; Moldova and Ukraine operate joint customs posts to monitor transit of people and commodities through Moldova's Transnistria Region, which remains under the auspices of an Organization for Security and Cooperation in Europe-mandated peacekeeping mission comprised of Moldovan, Transnistrian, Russian, and Ukrainian troops; the ICJ ruled largely in favor of Romania in its dispute submitted in 2004 over Ukrainian-administered Zmiyinyy/Serpilor (Snake) Island and Black Sea maritime boundary delimitation; Romania opposes Ukraine's reopening of a navigation canal from the Danube border through Ukraine to the Black Sea1997 boundary delimitation treaty with Belarus remains unratified due to unresolved financial claims, stalling demarcation and reducing border security; delimitation of land boundary with Russia is complete and demarcation began in 2012; the dispute over the boundary between Russia and Ukraine through the Kerch Strait and Sea of Azov is suspended due to the occupation of Crimea by Russia; Ukraine and Moldova signed an agreement officially delimiting their border in 1999, but the border has not been demarcated due to Moldova's difficulties with the break-away region of Transnistria; Moldova and Ukraine operate joint customs posts to monitor transit of people and commodities through Moldova's Transnistria Region, which remains under the auspices of an Organization for Security and Cooperation in Europe-mandated peacekeeping mission comprised of Moldovan, Transnistrian, Russian, and Ukrainian troops; the ICJ ruled largely in favor of Romania in its dispute submitted in 2004 over Ukrainian-administered Zmiyinyy/Serpilor (Snake) Island and Black Sea maritime boundary delimitation; Romania opposes Ukraine's reopening of a navigation canal from the Danube border through Ukraine to the Black Sea

Topic: United Arab Emiratesboundary agreement was signed and ratified with Oman in 2003 for entire border, including Oman's Musandam Peninsula and Al Madhah enclaves, but contents of the agreement and detailed maps showing the alignment have not been published; Iran and UAE dispute Tunb Islands and Abu Musa Island, which Iran occupiesboundary agreement was signed and ratified with Oman in 2003 for entire border, including Oman's Musandam Peninsula and Al Madhah enclaves, but contents of the agreement and detailed maps showing the alignment have not been published; Iran and UAE dispute Tunb Islands and Abu Musa Island, which Iran occupies

Topic: United Kingdomin 2002, Gibraltar residents voted overwhelmingly by referendum to reject any "shared sovereignty" arrangement between the UK and Spain; the Government of Gibraltar insisted on equal participation in talks between the two countries; Spain disapproved of UK plans to grant Gibraltar greater autonomy; Mauritius and Seychelles claim the Chagos Archipelago (British Indian Ocean Territory); in 2001, the former inhabitants of the archipelago, evicted 1967 - 1973, were granted UK citizenship and the right of return, followed by Orders in Council in 2004 that banned rehabitation, a High Court ruling reversed the ban, a Court of Appeal refusal to hear the case, and a Law Lords' decision in 2008 denied the right of return; in addition, the UK created the world's largest marine protection area around the Chagos islands prohibiting the extraction of any natural resources therein; UK rejects sovereignty talks requested by Argentina, which still claims the Falkland Islands (Islas Malvinas) and South Georgia and the South Sandwich Islands; territorial claim in Antarctica (British Antarctic Territory) overlaps Argentine claim and partially overlaps Chilean claim; Iceland, the UK, and Ireland dispute Denmark's claim that the Faroe Islands' continental shelf extends beyond 200 nmin 2002, Gibraltar residents voted overwhelmingly by referendum to reject any "shared sovereignty" arrangement between the UK and Spain; the Government of Gibraltar insisted on equal participation in talks between the two countries; Spain disapproved of UK plans to grant Gibraltar greater autonomy; Mauritius and Seychelles claim the Chagos Archipelago (British Indian Ocean Territory); in 2001, the former inhabitants of the archipelago, evicted 1967 - 1973, were granted UK citizenship and the right of return, followed by Orders in Council in 2004 that banned rehabitation, a High Court ruling reversed the ban, a Court of Appeal refusal to hear the case, and a Law Lords' decision in 2008 denied the right of return; in addition, the UK created the world's largest marine protection area around the Chagos islands prohibiting the extraction of any natural resources therein; UK rejects sovereignty talks requested by Argentina, which still claims the Falkland Islands (Islas Malvinas) and South Georgia and the South Sandwich Islands; territorial claim in Antarctica (British Antarctic Territory) overlaps Argentine claim and partially overlaps Chilean claim; Iceland, the UK, and Ireland dispute Denmark's claim that the Faroe Islands' continental shelf extends beyond 200 nm

Topic: United Statesthe US has intensified domestic security measures and is collaborating closely with its neighbors, Canada and Mexico, to monitor and control legal and illegal personnel, transport, and commodities across the international borders; abundant rainfall in recent years along much of the Mexico-US border region has ameliorated periodically strained water-sharing arrangements; 1990 Maritime Boundary Agreement in the Bering Sea still awaits Russian Duma ratification; Canada and the United States dispute how to divide the Beaufort Sea and the status of the Northwest Passage but continue to work cooperatively to survey the Arctic continental shelf; The Bahamas and US have not been able to agree on a maritime boundary; US Naval Base at Guantanamo Bay is leased from Cuba and only mutual agreement or US abandonment of the area can terminate the lease; Haiti claims US-administered Navassa Island; US has made no territorial claim in Antarctica (but has reserved the right to do so) and does not recognize the claims of any other states; Marshall Islands claims Wake Island; Tokelau included American Samoa's Swains Island among the islands listed in its 2006 draft constitutionthe US has intensified domestic security measures and is collaborating closely with its neighbors, Canada and Mexico, to monitor and control legal and illegal personnel, transport, and commodities across the international borders; abundant rainfall in recent years along much of the Mexico-US border region has ameliorated periodically strained water-sharing arrangements; 1990 Maritime Boundary Agreement in the Bering Sea still awaits Russian Duma ratification; Canada and the United States dispute how to divide the Beaufort Sea and the status of the Northwest Passage but continue to work cooperatively to survey the Arctic continental shelf; The Bahamas and US have not been able to agree on a maritime boundary; US Naval Base at Guantanamo Bay is leased from Cuba and only mutual agreement or US abandonment of the area can terminate the lease; Haiti claims US-administered Navassa Island; US has made no territorial claim in Antarctica (but has reserved the right to do so) and does not recognize the claims of any other states; Marshall Islands claims Wake Island; Tokelau included American Samoa's Swains Island among the islands listed in its 2006 draft constitution

Topic: United States Pacific Island Wildlife Refugesnonenone

Topic: Uruguayin 2010, the ICJ ruled in favor of Uruguay's operation of two paper mills on the Uruguay River, which forms the border with Argentina; the two countries formed a joint pollution monitoring regime; uncontested boundary dispute between Brazil and Uruguay over Braziliera/Brasiliera Island in the Quarai/Cuareim River leaves the tripoint with Argentina in question; smuggling of firearms and narcotics continues to be an issue along the Uruguay-Brazil borderin 2010, the ICJ ruled in favor of Uruguay's operation of two paper mills on the Uruguay River, which forms the border with Argentina; the two countries formed a joint pollution monitoring regime; uncontested boundary dispute between Brazil and Uruguay over Braziliera/Brasiliera Island in the Quarai/Cuareim River leaves the tripoint with Argentina in question; smuggling of firearms and narcotics continues to be an issue along the Uruguay-Brazil border

Topic: Uzbekistanprolonged drought and cotton monoculture in Uzbekistan and Turkmenistan created water-sharing difficulties for Amu Darya river states; field demarcation of the boundaries with Kazakhstan commenced in 2004; border delimitation of 130 km of border with Kyrgyzstan is hampered by serious disputes around enclaves and other areasprolonged drought and cotton monoculture in Uzbekistan and Turkmenistan created water-sharing difficulties for Amu Darya river states; field demarcation of the boundaries with Kazakhstan commenced in 2004; border delimitation of 130 km of border with Kyrgyzstan is hampered by serious disputes around enclaves and other areas

Topic: VanuatuMatthew and Hunter Islands east of New Caledonia claimed by Vanuatu and FranceMatthew and Hunter Islands east of New Caledonia claimed by Vanuatu and France

Topic: Venezuelaclaims all of the area west of the Essequibo River in Guyana, preventing any discussion of a maritime boundary; Guyana has expressed its intention to join Barbados in asserting claims before the UN Convention on the Law of the Sea that Trinidad and Tobago's maritime boundary with Venezuela extends into their waters; dispute with Colombia over maritime boundary and Venezuelan administered Los Monjes Islands near the Gulf of Venezuela; Colombian organized illegal narcotics and paramilitary activities penetrate Venezuela's shared border region; US, France, and the Netherlands recognize Venezuela's granting full effect to Aves Island, thereby claiming a Venezuelan Economic Exclusion Zone/continental shelf extending over a large portion of the eastern Caribbean Sea; Dominica, Saint Kitts and Nevis, Saint Lucia, and Saint Vincent and the Grenadines protest Venezuela's full effect claimclaims all of the area west of the Essequibo River in Guyana, preventing any discussion of a maritime boundary; Guyana has expressed its intention to join Barbados in asserting claims before the UN Convention on the Law of the Sea that Trinidad and Tobago's maritime boundary with Venezuela extends into their waters; dispute with Colombia over maritime boundary and Venezuelan administered Los Monjes Islands near the Gulf of Venezuela; Colombian organized illegal narcotics and paramilitary activities penetrate Venezuela's shared border region; US, France, and the Netherlands recognize Venezuela's granting full effect to Aves Island, thereby claiming a Venezuelan Economic Exclusion Zone/continental shelf extending over a large portion of the eastern Caribbean Sea; Dominica, Saint Kitts and Nevis, Saint Lucia, and Saint Vincent and the Grenadines protest Venezuela's full effect claim

Topic: Vietnamsoutheast Asian states have enhanced border surveillance to check the spread of Asian swine fever; Cambodia and Laos protest Vietnamese squatters and armed encroachments along border; Cambodia accuses Vietnam of a wide variety of illicit cross-border activities; progress on a joint development area with Cambodia is hampered by an unresolved dispute over sovereignty of offshore islands; an estimated 300,000 Vietnamese refugees reside in China; establishment of a maritime boundary with Cambodia is hampered by unresolved dispute over the sovereignty of offshore islands; the decade-long demarcation of the China-Vietnam land boundary was completed in 2009; China occupies the Paracel Islands also claimed by Vietnam and Taiwan; Brunei claims a maritime boundary extending beyond as far as a median with Vietnam, thus asserting an implicit claim to Lousia Reef; the 2002 "Declaration on the Conduct of Parties in the South China Sea" eased tensions but differences between the parties negotiating the Code of Conduct continue; Vietnam continues to expand construction of facilities in the Spratly Islands; in March 2005, the national oil companies of China, the Philippines, and Vietnam signed a joint accord to conduct marine seismic activities in the Spratly Islands; Economic Exclusion Zone negotiations with Indonesia are ongoing, and the two countries in Fall 2011 agreed to work together to reduce illegal fishing along their maritime boundary; in May 2018, Russia’s RosneftVietnam unit started drilling at a block southeast of Vietnam which is within the area outlined by China’s nine-dash line and Beijing issued a warningsoutheast Asian states have enhanced border surveillance to check the spread of Asian swine fever; Cambodia and Laos protest Vietnamese squatters and armed encroachments along border; Cambodia accuses Vietnam of a wide variety of illicit cross-border activities; progress on a joint development area with Cambodia is hampered by an unresolved dispute over sovereignty of offshore islands; an estimated 300,000 Vietnamese refugees reside in China; establishment of a maritime boundary with Cambodia is hampered by unresolved dispute over the sovereignty of offshore islands; the decade-long demarcation of the China-Vietnam land boundary was completed in 2009; China occupies the Paracel Islands also claimed by Vietnam and Taiwan; Brunei claims a maritime boundary extending beyond as far as a median with Vietnam, thus asserting an implicit claim to Lousia Reef; the 2002 "Declaration on the Conduct of Parties in the South China Sea" eased tensions but differences between the parties negotiating the Code of Conduct continue; Vietnam continues to expand construction of facilities in the Spratly Islands; in March 2005, the national oil companies of China, the Philippines, and Vietnam signed a joint accord to conduct marine seismic activities in the Spratly Islands; Economic Exclusion Zone negotiations with Indonesia are ongoing, and the two countries in Fall 2011 agreed to work together to reduce illegal fishing along their maritime boundary; in May 2018, Russia’s RosneftVietnam unit started drilling at a block southeast of Vietnam which is within the area outlined by China’s nine-dash line and Beijing issued a warning

Topic: Virgin Islandsnonenone

Topic: Wake Islandclaimed by Marshall Islandsclaimed by Marshall Islands

Topic: Wallis and Futunanonenone

Topic: West Bankthe current status of the West Bank is subject to the Israeli-Palestinian Interim Agreement - permanent status to be determined through further negotiation; Israel continues construction of a "seam line" separation barrier along parts of the Green Line and within the West Bank; Israel withdrew from Gaza and four settlements in the northern West Bank in August 2005; since 1948, about 350 peacekeepers from the UN Truce Supervision Organization (UNTSO), headquartered in Jerusalem, monitor ceasefires, supervise armistice agreements, prevent isolated incidents from escalating, and assist other UN personnel in the regionthe current status of the West Bank is subject to the Israeli-Palestinian Interim Agreement - permanent status to be determined through further negotiation; Israel continues construction of a "seam line" separation barrier along parts of the Green Line and within the West Bank; Israel withdrew from Gaza and four settlements in the northern West Bank in August 2005; since 1948, about 350 peacekeepers from the UN Truce Supervision Organization (UNTSO), headquartered in Jerusalem, monitor ceasefires, supervise armistice agreements, prevent isolated incidents from escalating, and assist other UN personnel in the region

Topic: Worldstretching over some 280,000 km, the world's 325 international land boundaries separate 195 independent states and 70 dependencies, areas of special sovereignty, and other miscellaneous entities; ethnicity, culture, race, religion, and language have divided states into separate political entities as much as history, physical terrain, political fiat, or conquest, resulting in sometimes arbitrary and imposed boundaries; most maritime states have claimed limits that include territorial seas and exclusive economic zones; overlapping limits due to adjacent or opposite coasts create the potential for 430 bilateral maritime boundaries of which 209 have agreements that include contiguous and non-contiguous segments; boundary, borderland/resource, and territorial disputes vary in intensity from managed or dormant to violent or militarized; undemarcated, indefinite, porous, and unmanaged boundaries tend to encourage illegal cross-border activities, uncontrolled migration, and confrontation; territorial disputes may evolve from historical and/or cultural claims, or they may be brought on by resource competition; ethnic and cultural clashes continue to be responsible for much of the territorial fragmentation and internal displacement of the estimated 45.7 million people and cross-border displacements of approximately 30.2 million refugees and asylum seekers around the world as of yearend 2019; approximately 317,200 refugees were repatriated during 2019; other sources of contention include access to water and mineral (especially hydrocarbon) resources, fisheries, and arable land; armed conflict prevails not so much between the uniformed armed forces of independent states as between stateless armed entities that detract from the sustenance and welfare of local populations, leaving the community of nations to cope with resultant refugees, hunger, disease, impoverishment, and environmental degradationstretching over some 280,000 km, the world's 325 international land boundaries separate 195 independent states and 70 dependencies, areas of special sovereignty, and other miscellaneous entities; ethnicity, culture, race, religion, and language have divided states into separate political entities as much as history, physical terrain, political fiat, or conquest, resulting in sometimes arbitrary and imposed boundaries; most maritime states have claimed limits that include territorial seas and exclusive economic zones; overlapping limits due to adjacent or opposite coasts create the potential for 430 bilateral maritime boundaries of which 209 have agreements that include contiguous and non-contiguous segments; boundary, borderland/resource, and territorial disputes vary in intensity from managed or dormant to violent or militarized; undemarcated, indefinite, porous, and unmanaged boundaries tend to encourage illegal cross-border activities, uncontrolled migration, and confrontation; territorial disputes may evolve from historical and/or cultural claims, or they may be brought on by resource competition; ethnic and cultural clashes continue to be responsible for much of the territorial fragmentation and internal displacement of the estimated 45.7 million people and cross-border displacements of approximately 30.2 million refugees and asylum seekers around the world as of yearend 2019; approximately 317,200 refugees were repatriated during 2019; other sources of contention include access to water and mineral (especially hydrocarbon) resources, fisheries, and arable land; armed conflict prevails not so much between the uniformed armed forces of independent states as between stateless armed entities that detract from the sustenance and welfare of local populations, leaving the community of nations to cope with resultant refugees, hunger, disease, impoverishment, and environmental degradation

Topic: YemenSaudi Arabia has reinforced its concrete-filled security barrier along sections of the fully demarcated border with Yemen to stem illegal cross-border activitiesSaudi Arabia has reinforced its concrete-filled security barrier along sections of the fully demarcated border with Yemen to stem illegal cross-border activities

Topic: ZambiaZambia-Angola: because the straight-line segments along the left bank (Zambian side) of the Cuando/Kwando River do not conform with the physical alignment of the unstable shoreline, Zambian residents in some areas have settled illegally on sections of shoreline that fall on the Angolan side of the boundary

Zambia-Democratic Republic of Congo(DRC): boundary commission continues discussions over Congolese-administered triangle of land on the right bank of the Lunkinda River claimed by Zambia near the DRC village of Pweto

Zambia-Zimbabwe: in 2004, Zimbabwe dropped objections to plans between Botswana and Zambia to build a bridge over the Zambezi River, thereby de facto recognizing a short, but not clearly delimited, Botswana-Zambia boundary in the riverZambia-Angola: because the straight-line segments along the left bank (Zambian side) of the Cuando/Kwando River do not conform with the physical alignment of the unstable shoreline, Zambian residents in some areas have settled illegally on sections of shoreline that fall on the Angolan side of the boundary

Zambia-Democratic Republic of Congo(DRC): boundary commission continues discussions over Congolese-administered triangle of land on the right bank of the Lunkinda River claimed by Zambia near the DRC village of Pweto

Zambia-Zimbabwe: in 2004, Zimbabwe dropped objections to plans between Botswana and Zambia to build a bridge over the Zambezi River, thereby de facto recognizing a short, but not clearly delimited, Botswana-Zambia boundary in the river

Topic: ZimbabweZimbabwe-South Africa: South Africa has placed military units to assist police operations along the border of Lesotho, Zimbabwe, and Mozambique to control smuggling, poaching, and illegal migration

Zimbabwe-Zambia: in 2004, Zimbabwe dropped objections to plans between Botswana and Zambia to build a bridge over the Zambezi River, thereby de facto recognizing a short, but not clearly delimited, Botswana-Zambia boundary in the riverZimbabwe-South Africa: South Africa has placed military units to assist police operations along the border of Lesotho, Zimbabwe, and Mozambique to control smuggling, poaching, and illegal migration

Zimbabwe-Zambia: in 2004, Zimbabwe dropped objections to plans between Botswana and Zambia to build a bridge over the Zambezi River, thereby de facto recognizing a short, but not clearly delimited, Botswana-Zambia boundary in the river