Division of Korea - wikipedia Division of Korea The Korean Peninsula first divided along the 38th parallel, later along the demarcation line Detail of the DMZ Part of a series on the History of Korea Prehistory Jeulmun Mumun Ancient Gojoseon ? -- 108 BC Jin state Proto -- Three Kingdoms Buyeo Goguryeo Okjeo Dongye Samhan Ma Byeon Jin Han Commanderies Three Kingdoms Goguryeo 37 BC -- 668 AD Baekje 18 BC -- 660 AD Silla 57 BC -- 935 AD Gaya confederacy 42 -- 562 North -- South States Later Silla ( Unified Silla ) 668 -- 935 Balhae 698 -- 926 Later Three Kingdoms Later Baekje 892 -- 936 Taebong ( Later Goguryeo ) 901 -- 918 Later Silla 668 -- 935 Unitary dynastic period Goryeo 918 -- 1392 Joseon 1392 -- 1897 Korean Empire 1897 -- 1910 Colonial period Japanese rule 1910 -- 1945 Provisional Government 1919 -- 1948 Division of Korea Military Governments 1945 -- 1948 North Korea 1948 -- present South Korea 1948 -- present By topic Art Language Military ( Goguryeo ) Monarchs Naval Science and technology Timeline Korea portal The division of Korea between North and South Korea occurred after World War II, ending the Empire of Japan 's 35 - year rule over Korea in 1945. The United States and the Soviet Union occupied two parts of the country, with the boundary between their zones of control along the 38th parallel. With the onset of the Cold War, negotiations between the United States and the Soviet Union failed to lead to an independent, unified Korea. In 1948, UN-supervised elections were held in the US - occupied south only. The anti-communist Syngman Rhee won the election while Kim Il - Sung was appointed as the leader of North Korea by Joseph Stalin. This led to the establishment of the Republic of Korea in South Korea, which was promptly followed by the establishment of the Democratic People 's Republic of Korea in North Korea. The United States supported the South, the Soviet Union supported the North, and each government claimed sovereignty over the whole Korean peninsula. The subsequent Korean War, which lasted from 1950 to 1953, ended with a stalemate and has left the two Koreas separated by the Korean Demilitarized Zone ( DMZ ) up to the present day. Contents 1 Historical background 1.1 Korea under Japanese rule ( 1910 -- 1945 ) 1.2 End of World War II 2 Post-World War II 2.1 US occupation of South Korea 2.2 Soviet occupation of North Korea 2.3 UN intervention and the formation of separate governments 3 Korean War 4 Geneva Conference and NNSC 5 Post-armistice relations 6 See also 7 Notes 8 References 9 External links Historical background Korea under Japanese rule ( 1910 -- 1945 ) Main article : Korea under Japanese rule When the Russo - Japanese War ended in 1905 Korea became a nominal protectorate of Japan, and was annexed by Japan in 1910. The Korean king Gojong was removed. In the following decades, nationalist and radical groups emerged, mostly in exile, to struggle for independence. Divergent in their outlooks and approaches, these groups failed to unite in one national movement. The Korean Provisional Government in China failed to obtain widespread recognition. End of World War II Main article : World War II In November 1943, Franklin Roosevelt, Winston Churchill and Chiang Kai - shek met at the Cairo Conference to discuss what should happen to Japan 's colonies, and agreed that Japan should lose all the territories it had conquered by force. In the declaration after this conference, Korea was mentioned for the first time. The three powers declared that they were, `` mindful of the enslavement of the people of Korea,... determined that in due course Korea shall become free and independent. '' Roosevelt floated the idea of a trusteeship over Korea, but did not obtain agreement from the other powers. Roosevelt raised the idea with Joseph Stalin at the Tehran Conference in November 1943 and the Yalta Conference in February 1945. Stalin did not disagree, but advocated that the period of trusteeship be short. Regional movement of Soviet forces in 1945 At the Tehran Conference and the Yalta Conference, the Soviet Union promised to join its allies in the Pacific War in two to three months after victory in Europe. On August 8, 1945, three months to the day after the end of hostilities in Europe, and two days after the atomic bomb was dropped on Hiroshima, the Soviet Union declared war on Japan. Soviet troops advanced rapidly, and the US government became anxious that they would occupy the whole of Korea. On August 10, 1945 two young officers -- Dean Rusk and Charles Bonesteel -- were assigned to define an American occupation zone. Working on extremely short notice and completely unprepared, they used a National Geographic map to decide on the 38th parallel. They chose it because it divided the country approximately in half but would place the capital Seoul under American control. No experts on Korea were consulted. The two men were unaware that forty years before, Japan and pre-revolutionary Russia had discussed sharing Korea along the same parallel. Rusk later said that had he known, he `` almost surely '' would have chosen a different line. The division placed sixteen million Koreans in the American zone and nine million in the Soviet zone. To the surprise of the Americans, the Soviet Union immediately accepted the division. The agreement was incorporated into General Order No. 1 ( approved on 17 August 1945 ) for the surrender of Japan. Soviet forces began amphibious landings in Korea by August 14 and rapidly took over the north - east of the country, and on August 16 they landed at Wonsan. On August 24, the Red Army reached Pyongyang. General Abe Nobuyuki, the last Japanese Governor - General of Korea, had established contact with a number of influential Koreans since the beginning of August 1945 to prepare the hand - over of power. Throughout August, Koreans organized people 's committee branches for the `` Committee for the Preparation of Korean Independence '' ( CPKI, 조선 건국 준비 위원회 ), headed by Lyuh Woon - hyung, a left - wing politician. On September 6, 1945, a congress of representatives was convened in Seoul and founded the short - lived People 's Republic of Korea. Post-world War II South Korean citizens protest Allied trusteeship in December 1945. In December 1945, at the Moscow Conference, the Allies agreed that the Soviet Union, the US, the Republic of China, and Britain would take part in a trusteeship over Korea for up to five years in the lead - up to independence. Many Koreans demanded independence immediately ; however, the Korean Communist Party, which was closely aligned with the Soviet Communist party, supported the trusteeship. A Soviet - US Joint Commission met in 1946 and 1947 to work towards a unified administration, but failed to make progress due to increasing Cold War antagonism and to Korean opposition to the trusteeship. Meanwhile, the division between the two zones deepened. The difference in policy between the occupying powers led to a polarization of politics, and a transfer of population between North and South. In May 1946 it was made illegal to cross the 38th parallel without a permit. US occupation of South Korea Main article : United States Army Military Government in Korea Lyuh Woon - hyung giving a speech in the Committee for Preparation of Korean Independence in Seoul on August 16, 1945 With the American government fearing Soviet expansion, and the Japanese authorities in Korea warning of a power vacuum, the embarkation date of the US occupation force was brought forward three times. On September 7, 1945, General Douglas MacArthur announced that Lieutenant General John R. Hodge was to administer Korean affairs, and Hodge landed in Incheon with his troops the next day. The Provisional Government of the Republic of Korea, which had operated from China, sent a delegation with three interpreters to Hodge, but he refused to meet with them. Likewise, Hodge refused to recognize the newly formed People 's Republic of Korea and its People 's Committees, and outlawed it on 12 December. In September 1946, thousands of laborers and peasants rose up against the military government. This uprising was quickly defeated, and failed to prevent scheduled October elections for the South Korean Interim Legislative Assembly. The ardent anti-communist Syngman Rhee, who had been the first president of the Provisional Government and later worked as a pro-Korean lobbyist in the US, became the most prominent politician in the South. Rhee pressured the American government to abandon negotiations for a trusteeship and create an independent Republic of Korea in the south. On July 19, 1947, Lyuh Woon - hyung, the last senior politician committed to left - right dialogue, was assassinated by a right - winger. The occupation government conducted a number of military campaigns against left - wing insurgents. Over the course of the next few years, between 30,000 and 100,000 people were killed. Soviet occupation of North Korea Further information : Soviet Civil Administration and Provisional People 's Committee for North Korea Welcome celebration for the Red Army in Pyongyang on 14 October 1945 When Soviet troops entered Pyongyang, they found a local branch of the Committee for the Preparation of Korean Independence operating under the leadership of veteran nationalist Cho Man - sik. The Soviet Army allowed these `` People 's Committees '' ( which were friendly to the Soviet Union ) to function. Colonel - General Terentii Shtykov set up the Soviet Civil Administration, taking control of the committees and placing communists in key positions. In February 1946 a provisional government called the Provisional People 's Committee was formed under Kim Il - sung, who had spent the last years of the war training with Soviet troops in Manchuria. Conflicts and power struggles ensued at the top levels of government in Pyongyang as different aspirants maneuvered to gain positions of power in the new government. In March 1946 the provisional government instituted a sweeping land - reform program : land belonging to Japanese and collaborator landowners was divided and redistributed to poor farmers. Organizing the many poor civilians and agricultural laborers under the people 's committees, a nationwide mass campaign broke the control of the old landed classes. Landlords were allowed to keep only the same amount of land as poor civilians who had once rented their land, thereby making for a far more equal distribution of land. The North Korean land reform was achieved in a less violent way than in China or in Vietnam. Official American sources stated : `` From all accounts, the former village leaders were eliminated as a political force without resort to bloodshed, but extreme care was taken to preclude their return to power. '' The farmers responded positively ; many collaborators and former landowners fled to the south, where some of them obtained positions in the new South Korean government. According to the U.S. military government, 400,000 northern Koreans went south as refugees. Key industries were nationalized. The economic situation was nearly as difficult in the north as it was in the south, as the Japanese had concentrated agriculture in the south and heavy industry in the north. Soviet forces departed in 1948. UN intervention and the formation of separate governments South Korean demonstration in support of the U.S. - Soviet Joint Commission in 1946 South Korean general election on May 10, 1948 With the failure of the Joint Commission to make progress, the US brought the problem before the United Nations in September 1947. The Soviet Union opposed UN involvement. At that time, the US had more influence over the UN than the USSR. The UN passed a resolution on November 14, 1947, declaring that free elections should be held, foreign troops should be withdrawn, and a UN commission for Korea, the United Nations Temporary Commission on Korea ( UNTCOK ), should be created. The Soviet Union boycotted the voting and did not consider the resolution to be binding, arguing that the UN could not guarantee fair elections. In the absence of Soviet co-operation, it was decided to hold UN-supervised elections in the south only. Some UNTCOK delegates felt that the conditions in the south gave unfair advantage to right - wing candidates, but they were overruled. The decision to proceed with separate elections was unpopular among many Koreans, who rightly saw it as a prelude to a permanent division of the country. General strikes in protest against the decision began in February 1948. In April, Jeju islanders rose up against the looming division of the country. South Korean troops were sent to repress the rebellion. Tens of thousands of islanders were killed and by one estimate, 70 % of the villages were burned by the South Korean troops. The uprising flared up again with the outbreak of the Korean War. In April 1948, a conference of organizations from the north and the south met in Pyongyang, but the conference produced no results. The southern politicians Kim Koo and Kim Kyu - sik attended the conference and boycotted the elections in the south, as did other politicians and parties. Kim Koo was assassinated the following year. On May 10, 1948 the south held a general election. On August 15, the `` Republic of Korea '' formally took over power from the U.S. military, with Syngman Rhee as the first president. In the North, the `` Democratic People 's Republic of Korea '' was declared on September 9, with Kim Il - sung as prime minister. On December 12, 1948, the United Nations General Assembly accepted the report of UNTCOK and declared the Republic of Korea to be the `` only lawful government in Korea ''. Unrest continued in the South. In October 1948, the Yeosu -- Suncheon Rebellion took place, in which some regiments rejected the suppression of the Jeju uprising and rebelled against the government. In 1949, the Syngman Rhee government established the Bodo League in order to keep an eye on its political opponents. The majority of the Bodo League 's members were innocent farmers and civilians who were forced into membership. The registered members or their families were executed at the beginning of the Korean War. On December 24, 1949, South Korean Army massacred Mungyeong citizens who were suspected communist sympathizers or their family and affixed blame to communists. Korean War Main article : Korean War This division of Korea, after more than a millennium of being unified, was seen as controversial and temporary by both regimes. From 1948 until the start of the civil war on June 25, 1950, the armed forces of each side engaged in a series of bloody conflicts along the border. In 1950, these conflicts escalated dramatically when North Korean forces invaded South Korea, triggering the Korean War. The United Nations intervened to protect the South, sending a US - led force. As it occupied the south, the Democratic People 's Republic of Korea attempted to unify Korea under its regime, initiating the nationalisation of industry, land reform, and the restoration of the People 's Committees. While UN intervention was conceived as restoring the border at the 38th parallel, Syngman Rhee argued that the attack of the North had obliterated the boundary. Similarly UN Commander in Chief, General Douglas MacArthur stated that he intended to unify Korea, not just drive the North Korean forces back behind the border. However, the North overran 90 % of the south until a counter-attack by US - led forces. As the North Korean forces were driven from the south, South Korean forces crossed the 38th parallel on 1 October, and American and other UN forces followed a week later. This was despite warnings from the People 's Republic of China that it would intervene if American troops crossed the parallel. As it occupied the North, the Republic of Korea, in turn, attempted to unify the country under its regime, with the Korean National Police enforcing political indoctrination. As US - led forces pushed into north, China unleashed a counter-attack which drove them back into the south. In 1951, the front line stabilized near the 38th parallel, and both sides began to consider an armistice. Rhee, however, demanded the war continue until Korea was unified under his leadership. The Communist side supported an armistice line being based on the 38th parallel, but the United Nations supported a line based on the territory held by each side, which was defensible, and this position prevailed. The Korean Armistice Agreement was signed after three years of war. The two sides agreed to create a four - kilometer - wide buffer zone between the states, known as the Korean Demilitarized Zone ( DMZ ). This new border, reflecting the territory held by each side at the end of the war, crossed the 38th parallel diagonally. Rhee refused to accept the armistice and continued to urge the reunification of the country by force. Despite attempts by both sides to reunify the country, the war perpetuated the division of Korea and led to a permanent alliance between South Korea and the U.S., and a permanent U.S. garrison in the South. Geneva Conference and NNSC As dictated by the terms of the Korean Armistice, a Geneva Conference was held in 1954 on the Korean question. Despite efforts by many of the nations involved, the conference ended without a declaration for a unified Korea. The Armistice established a Neutral Nations Supervisory Commission ( NNSC ) which was tasked to monitor the Armistice. Since 1953, members of the Swiss and Swedish Armed Forces have been members of the NNSC stationed near the DMZ. Post-armistice relations Main article : Korean conflict Since the war, Korea has remained divided along the DMZ. North and South have remained in a state of conflict, with the opposing regimes both claiming to be the legitimate government of the whole country. Sporadic negotiations have failed to produce lasting progress towards reunification. See also Korea portal List of border incidents involving North Korea Korean conflict Korean reunification North Korea -- South Korea relations History of North Korea History of South Korea Partition of Vietnam Notes Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. pp. 31 -- 37. ISBN 0 - 415 - 23749 - 1. Jump up ^ Cumings, Bruce ( 2005 ). Korea 's Place in the Sun : A Modern History. New York : W.W. Norton & Company. pp. 156 -- 160. ISBN 0 - 393 - 32702 - 7. ^ Jump up to : Cumings, Bruce ( 2005 ). Korea 's Place in the Sun : A Modern History. New York : W.W. Norton & Company. pp. 159 -- 160. ISBN 0 - 393 - 32702 - 7. Jump up ^ `` Cairo Communique, December 1, 1943 ''. Japan National Diet Library. December 1, 1943. Jump up ^ Savada, Andrea Matles ; Shaw, William, eds. ( 1990 ), `` World War II and Korea '', South Korea : A Country Study, GPO, Washington, DC : Library of Congress Jump up ^ Cumings, Bruce ( 2005 ). Korea 's Place in the Sun : A Modern History. New York : W.W. Norton & Company. pp. 187 -- 188. ISBN 0 - 393 - 32702 - 7. Jump up ^ Stueck, William W. ( 2002 ), Rethinking the Korean War : A New Diplomatic and Strategic History, Princeton, NJ : Princeton University Press, p. 20, ISBN 0 - 691 - 11847 - 7 Jump up ^ Walker, J Samuel ( 1997 ). Prompt and Utter Destruction : Truman and the Use of Atomic Bombs Against Japan. Chapel Hill : The University of North Carolina Press. p. 82. ISBN 0 - 8078 - 2361 - 9. Jump up ^ Oberdorfer, Don ; Carlin, Robert ( 2014 ). The Two Koreas : A Contemporary History. Basic Books. p. 5. ISBN 9780465031238. Jump up ^ Seth, Michael J. ( 2010 ). A History of Korea : From Antiquity to the Present. Rowman & Littlefield Publishers. p. 306. ISBN 9780742567177. Retrieved 2015 - 11 - 16. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. p. 53. ISBN 0 - 415 - 23749 - 1. ^ Jump up to : Hyung Gu Lynn ( 2007 ). Bipolar Orders : The Two Koreas since 1989. Zed Books. p. 18. Jump up ^ Seth, Michael J. ( 2010 ). A Concise History of Modern Korea : From the Late Nineteenth Century to the Present. Hawaìi studies on Korea. Rowman & Littlefield. p. 86. ISBN 9780742567139. Retrieved 2015 - 11 - 16. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. pp. 53 -- 57. ISBN 0 - 415 - 23749 - 1. Jump up ^ Robinson, Michael E ( 2007 ). Korea 's Twentieth - Century Odyssey. Honolulu : University of Hawaii Press. pp. 105 -- 106. ISBN 978 - 0 - 8248 - 3174 - 5. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. p. 59. ISBN 0 - 415 - 23749 - 1. Jump up ^ Bluth, Christoph ( 2008 ). Korea. Cambridge : Polity Press. p. 12. ISBN 978 - 07456 - 3357 - 2. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. pp. 59 -- 60, 65. ISBN 0 - 415 - 23749 - 1. Jump up ^ Robinson, Michael E ( 2007 ). Korea 's Twentieth - Century Odyssey. Honolulu : University of Hawaii Press. pp. 108 -- 109. ISBN 978 - 0 - 8248 - 3174 - 5. ^ Jump up to : Hyung Gu Lynn ( 2007 ). Bipolar Orders : The Two Koreas since 1989. Zed Books. p. 20. Jump up ^ Hart - Landsberg, Martin ( 1998 ). Korea : Division, Reunification, & U.S. Foreign Policy. Monthly Review Press. pp. 71 -- 77. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. p. 57. ISBN 0 - 415 - 23749 - 1. Jump up ^ Stueck, William W. ( 2002 ). Rethinking the Korean War : A New Diplomatic and Strategic History. Princeton, NJ : Princeton University Press. pp. 49, 55 -- 57. ISBN 0 - 691 - 11847 - 7. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. p. 65. ISBN 0 - 415 - 23749 - 1. Jump up ^ Arthur Millet, The War for Korea, 1945 -- 1950 ( 2005 ). Jump up ^ Jon Halliday and Bruce Cumings, Korea : The Unknown War, Viking Press, 1988, ISBN 0 - 670 - 81903 - 4. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. pp. 54 -- 55. ISBN 0 - 415 - 23749 - 1. Jump up ^ Robinson, Michael E ( 2007 ). Korea 's Twentieth - Century Odyssey. Honolulu : University of Hawaii Press. p. 106. ISBN 978 - 0 - 8248 - 3174 - 5. Jump up ^ Cumings, Bruce. The Origins of the Korean War : Liberation and the Emergence of Separate Regimes, 1945 -- 1947. Princeton University Press, 1981, 607 pages, ISBN 0 - 691 - 09383 - 0. Jump up ^ Allan R. Millet, The War for Korea : 1945 -- 1950 ( 2005 ) p. 59. Jump up ^ Gbosoe, Gbingba T. ( 2006 ). Modernization of Japan. iUniverse. p. 212. ISBN 9780595411900. Retrieved 2015 - 10 - 06. Although Soviet occupation forces were withdrawn on December 10, 1948, (... ) the Soviets had maintained ties with the Democratic Peoples ' Republic of Korea (... ) Jump up ^ Lone, Stewart ; McCormack, Gavan ( 1993 ). Korea since 1850. Melbourne : Longman Cheshire. pp. 100 -- 101. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. p. 66. ISBN 0 - 415 - 23749 - 1. Jump up ^ Jager, Sheila Miyoshi ( 2013 ). Brothers at War -- The Unending Conflict in Korea. London : Profile Books. p. 47. ISBN 978 - 1 - 84668 - 067 - 0. Jump up ^ Cumings, Bruce ( 2005 ). Korea 's Place in the Sun : A Modern History. New York : W.W. Norton & Company. pp. 211 -- 212. ISBN 0 - 393 - 32702 - 7. Jump up ^ `` Ghosts of Cheju ''. Newsweek. 2000 - 06 - 19. Retrieved 2012 - 09 - 02. Jump up ^ Robinson, Michael E ( 2007 ). Korea 's Twentieth - Century Odyssey. Honolulu : University of Hawaii Press. p. 112. ISBN 978 - 0 - 8248 - 3174 - 5. Jump up ^ Cumings, Bruce ( 2005 ). Korea 's Place in the Sun : A Modern History. New York : W.W. Norton & Company. pp. 211, 507. ISBN 0 - 393 - 32702 - 7. Jump up ^ Jager, Sheila Miyoshi ( 2013 ). Brothers at War -- The Unending Conflict in Korea. London : Profile Books. pp. 47 -- 48. ISBN 978 - 1 - 84668 - 067 - 0. Jump up ^ Jager, Sheila Miyoshi ( 2013 ). Brothers at War -- The Unending Conflict in Korea. London : Profile Books. pp. 48, 496. ISBN 978 - 1 - 84668 - 067 - 0. Jump up ^ Buzo, Adrian ( 2002 ). The Making of Modern Korea. London : Routledge. p. 67. ISBN 0 - 415 - 23749 - 1. Jump up ^ `` 439 civilians confirmed dead in Yeosu - Suncheon Uprising of 1948 New report by the Truth Commission places blame on Syngman Rhee and the Defense Ministry, advises government apology ''. The Hankyoreh. 8 January 2009. Retrieved 2 September 2012. Jump up ^ `` Gov 't Killed 3,400 Civilians During War ''. The Korea Times. 2 March 2009. Archived from the original on 4 October 2012. Retrieved 19 October 2014. Jump up ^ 두 민간인 학살 사건, 상반된 판결 왜 나왔나 ? ' 울산 보도 연맹 ' -- ' 문경 학살 사건 ' 판결문 비교 분석해 봤더니... OhmyNews ( in Korean ). 2009 - 02 - 17. Archived from the original on 2011 - 05 - 03. Retrieved 2012 - 09 - 02. Jump up ^ Lone, Stewart ; McCormack, Gavan ( 1993 ). Korea since 1850. Melbourne : Longman Cheshire. p. 112. Jump up ^ Stueck, William W. ( 2002 ). Rethinking the Korean War : A New Diplomatic and Strategic History. Princeton, NJ : Princeton University Press. pp. 87 -- 88. ISBN 0 - 691 - 11847 - 7. Jump up ^ Stueck, William W. ( 2002 ). Rethinking the Korean War : A New Diplomatic and Strategic History. Princeton, NJ : Princeton University Press. p. 89. ISBN 0 - 691 - 11847 - 7. Jump up ^ Cumings, Bruce ( 2005 ). Korea 's Place in the Sun : A Modern History. New York : W.W. Norton & Company. pp. 281 -- 282. ISBN 0 - 393 - 32702 - 7. Jump up ^ Stueck, William W. ( 2002 ). Rethinking the Korean War : A New Diplomatic and Strategic History. Princeton, NJ : Princeton University Press. p. 141. ISBN 0 - 691 - 11847 - 7. Jump up ^ Stueck, William W. ( 2002 ). Rethinking the Korean War : A New Diplomatic and Strategic History. Princeton, NJ : Princeton University Press. pp. 139,180. ISBN 0 - 691 - 11847 - 7. Jump up ^ Stueck, William W. ( 2002 ). Rethinking the Korean War : A New Diplomatic and Strategic History. Princeton, NJ : Princeton University Press. pp. 189 -- 193. ISBN 0 - 691 - 11847 - 7. Jump up ^ Stueck, William W. ( 2002 ). Rethinking the Korean War : A New Diplomatic and Strategic History. Princeton, NJ : Princeton University Press. pp. 188 -- 189. ISBN 0 - 691 - 11847 - 7. Jump up ^ `` NNSC in Korea '' ( PDF ). Swiss Army. Archived from the original ( PDF ) on August 29, 2011. Jump up ^ `` Korea ''. Swedish Armed Forces. Archived from the original on August 25, 2010. Jump up ^ Feffer, John ( June 9, 2005 ). `` Korea 's slow - motion reunification ''. Boston Globe. Retrieved 2007 - 08 - 13. References Oberdorfer, Don. The Two Koreas : A Contemporary History. Addison - Wesley, 1997, 472 pages, ISBN 0 - 201 - 40927 - 5 Cumings, Bruce. The Origins of the Korean War : Liberation and the Emergence of Separate Regimes, 1945 - 1947. Princeton University Press, 1981, 607 pages, ISBN 0 - 691 - 09383 - 0 Hoare, James ; Daniels, Gordon ( February 2004 ). `` The Korean Armistice North and South : The Low - Key Victory ( Hoare ) ; The British Press and the Korean Armistice : Antecedents, Opinions and Prognostications ( Daniels ) ''. The Korean Armistice of 1953 and its Consequences : Part I ( PDF ) ( Discussion Paper No. IS / 04 / 467 ed. ). London : The Suntory Centre ( London School of Economics ). 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Question: when did korea break into north and south
Answer: 17 August 1945