Question: Who are the territorial disputes former claimants of the territory that occupies an area of 2,172,000 square kilometres ( 839,000 sq mi ) ?

text: List of territorial disputes
Historical disputes , subsequently settled -- Asia and the Pacific

Territorial disputes have occurred throughout history, over lands around the world. Bold indicates one claimant's full control; italics indicates one or more claimants' partial control.
Territory Former claimants Dispute started Dispute settled Notes
Tiran and Sanafir Islands Saudi Arabia Egypt 1906 2017 These islands were transferred to Saudi Arabia in 2017
Bay of Bengal Maritime Boundary between Bangladesh and India India Bangladesh 1974 2014 India and Bangladesh had engaged in eight rounds of bilateral negotiations starting 1974 but it remained inconclusive until 2009 . In October 2009 , Bangladesh served India with notice of arbitration proceedings under the UNCLOS . The Arbitration Tribunal delivered the ruling on 7 July 2014 and settled the dispute
Indo-Bangladesh enclaves , adverse possessions and undemarcated land boundaries India Bangladesh 1947 2015 Following Partition of Bengal ( 1947 ) , the issues of adverse possessions , enclaves and unmarked boundary arose . Inside the main part of Bangladesh , there were 111 Indian enclaves ( 17,160.63 acres ) , while inside the main part of India , there were 51 Bangladeshi enclaves ( 7,110.02 acres ) . In 1974 Bangladesh approved a proposed treaty , Land Boundary Agreement , to exchange all enclaves within each other 's territories , but India did not ratify it . Another agreement was agreed upon in 2011 to exchange enclaves and adverse possessions . With respect to adverse possessions , India received 2,777.038 acres of land and transferred 2,267.682 acres to Bangladesh . India ratified the agreement by constitutional amendment in May 2015
Muhurichar river island India Bangladesh 1974 2011 Historically controlled by India but claimed by Bangladesh , disputed from approximately 1974 . An agreement was reached on the demarcation of the border in the area in 2011 , and in 2019 the Indian government confirmed that it no longer had any outstanding boundary dispute with Bangladesh
South Talpatti/New Moore/Purbasha Island India Bangladesh c. 1975 2010 This former dispute over a small island never more than two meters above sea level was contested from the island 's appearance in the 1970s to its disappearance , likely due to climate change , in the first decade of the 2000s . Though land disputes no longer exist , the maritime boundary was not settled until 2014
Sakhalin Island Russian Empire Empire of Japan 1845 1875 Japan unilaterally proclaimed sovereignty over the whole island in 1845 , but its claims were ignored by the Russian Empire . The 1855 Treaty of Shimoda acknowledged that both Russia and Japan had joint rights of occupation to Sakhalin , without setting a definite territorial demarcation . As the island became settled in the 1860s and 1870s , this ambiguity led to increasing friction between settlers . Attempts by the Tokugawa shogunate to purchase the entire island from the Russian Empire failed , and the new Meiji government was unable to negotiate a partition of the island into separate territories . In 1875 by the Treaty of Saint Petersburg , Japan agreed to give up its claims on Sakhalin in exchange for undisputed ownership of the Kuril Islands . In 1905 under the Treaty of Portsmouth Japan gained Sakhalin to the 60th parallel , but lost it again in 1945
Pamir Mountains Tajikistan China 1877 2011 The Tajik Government ceded 1,158 square kilometres ( 447 sq mi ) to the PRC , while PRC relinquished its 28,000 square miles ( 73,000 km ) claim over the remaining territory with final ratification of a treaty in January 2011
Palmas Island ( modern-day Miangas Island ) Philippine Islands Dutch East Indies 1906 1928 Dispute between the United States and the Netherlands over the Palmas island located south of the Philippines , which was then American territory . The Netherlands believed that the islands were part of the Dutch East Indies . The territorial dispute was solved through the Island of Palmas case which decided that the Palmas Island belongs to the Netherlands . Palmas Island , now Miangas Island , is a part of modern Indonesia
Yalu River ( disputed sovereignty of certain islands ) China North Korea South Korea 1949 2005 The allocation to North Korea of all of the large islands in the lower Yalu River , including Pidan and Sindo at the mouth , is now clear . The river 's maritime rights remain shared between the two nations
Shaksgam Valley Pakistan ( still claimed by : India China ) 1947 1963 Pakistan relinquished its claim to PR China ; India did not
Sinai Peninsula Israel Egypt 1967 1982 During the Six-Day War Israel claimed Sinai . It was returned in 1982 under the terms of the 1979 Egypt-Israel Peace Treaty
Taba Israel Egypt 1979 1989 When Egypt and Israel were negotiating the exact position of the border in preparation for the 1979 peace treaty , Israel claimed that Taba had been on the Ottoman side of a border agreed between the Ottomans and British Egypt in 1906 and had , therefore , been in error in its two previous agreements . Although most of Sinai was returned to Egypt in 1982 , Taba was the last portion to be returned . The issue was submitted to an international commission . In 1988 , the commission ruled in Egypt 's favour , and Israel returned Taba to Egypt in 1989
Turtle Islands Philippine Islands North Borneo  1930 Dispute between the United States and the United Kingdom over the Turtle Islands located south of the Philippines , which was then American territory . In a 1930 treaty the United Kingdom acknowledge American sovereignty over the islands and was agreed upon that the British would remain administering the island until the United States express interest to take over control over the islands after a one-year notice . When the Philippines gained full independence from the United States in 1946 , the Philippines invoked the treaty and the British turned over the islands to the Philippines in 1947
West Bank , including East Jerusalem Israel Jordan 1967 1988 During the Six-Day War Israel conquered these territories from Jordan . Jordan later renounced the claim on the territory , supporting instead its inclusion in a future Palestine
Ligitan and Sipadan Malaysia Indonesia 1969 2002 The 2002 International Court of Justice ruling awarded both islands to Malaysia , but left unsettled the maritime boundary immediately southwest and west of the islands between Malaysia and Indonesia
Hawar Islands Qatar Bahrain 1971 2001 Formerly disputed between Qatar and Bahrain , it was settled by the International Court of Justice ( ICJ ) in The Hague . In the June 2001 decision , Bahrain kept the Hawar Islands and Qit'at Jaradah but dropped claims to Janan Island and Zubarah on mainland Qatar , while Qatar retained significant maritime areas and their resources . The agreement has furthered the goal of definitively establishing the border with Saudi Arabia and Saudi-led mediation efforts continue
Pulau Batek / Fatu Sinai ( de ) Indonesia East Timor 2002 2004 Ceded by Timor-Leste to Indonesia in August 2004
Saudi Arabia-Yemen border demarcation dispute Saudi Arabia Yemen 1934 2000 Settled by the Treaty of Jeddah ( 2000 )