List of territorial disputes

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.

Ongoing disputes between UN member/observer states

Africa

Territory	Claimants	Notes
Abyei, Jodha, Kafia Kingi, Jau, Heglig, Megenis MTS. and Kaka	Sudan South Sudan	Both Sudan and South Sudan have claimed the area after the civil war that led to South Sudan's independence. Heglig was controlled by South Sudan in mid-April 2012, but retaken by Sudan.
Banc du Geyser	France Comoros Madagascar	Scattered Islands in the Indian Ocean, a district of the French Southern Territories.
Bassas da India, Europa Island and Juan de Nova Island	France Madagascar	De facto part of the French overseas territory of the French Southern Territories.
Ceuta,Melilla, and other plazas de soberanía	Spain Morocco	Ceuta and Melilla are administered by Spain as autonomous cities. After an incident on Perejil Island in 2002, both countries agreed to return to the status quo.
Chagos Archipelago	United Kingdom Mauritius	The United Kingdom de facto administers the archipelago as the British Indian Ocean Territory. Mauritius claims the islands. Mauritius and the UK are currently in negotiations to transfer sovereignty of the Chagos islands to Mauritius.
Doumeira Mountain, Ras Doumeira and Doumeira Island	Eritrea Djibouti	Basis of the Djiboutian–Eritrean border conflict of 2008. Disputed territory occupied by Eritrea following withdrawal of Qatari peacekeepers in June 2017. Alternatively transliterated as the Dumaira Mountains.
Glorioso Islands	France Madagascar Comoros	De facto a part of the French overseas territory of the French Southern Territories.
Hala'ib Triangle and Bir Tawil	Egypt Sudan	Previously under joint administration; Egypt now maintains full de facto control of the Hala'ib Triangle. The boundaries claimed by Egypt and Sudan both include the Hala'ib Triangle. The area of Bir Tawil close to the triangle is unclaimed by both countries.
Ilemi Triangle	Kenya South Sudan	De facto controlled by Kenya. Ethiopian tribes used and made raids in the land, but the Ethiopian government has never made a claim to it, agreeing it was Sudanese in 1902, 1907, and 1972 treaties.
KaNgwane and Ingwavuma	South Africa Eswatini	Eswatini claims territories that it states were confiscated during colonial times. The area claimed by Eswatini is the former bantustan of KaNgwane, which now forms the northern parts of Jozini and uMhlabuyalingana local municipalities in KwaZulu-Natal, and the southern part of Nkomazi, the southeastern part of Umjindi and the far eastern part of Albert Luthuli local municipalities in Mpumalanga.
Koalou village and surrounding area	Burkina Faso Benin	Burkina Faso and Benin retain a border dispute at this 7.75 km² triangular area of land near the tripoint border with Togo. In a 2008 meeting, it was declared that the territory was a neutral zone, neither Burkinabé nor Beninese. According to the UN Refugee Agency in 2015, there were issues of children being born stateless in the area, however, a Beninese civil registration office has taken control of registering births in the area.
Kpéaba village area (near Sipilou/Siquita)	Ivory Coast Guinea	The Guinean military occupied this village for 1 month from January to February 2013, before withdrawing in preparation for talks. In December 2016, Guinea soldiers and civilians attacked the village, killing 1 and wounding several others, before returning to their side of the border. According to the Guinean Minister of Defence, the Guinean army had been asked not to send any soldiers to this area and had no involvement in this incident.
Area near /Moyo District	South Sudan Uganda	A 1914 British colonial order defined the international border based on the tribal boundary between the Kuku of Kajokeji (South Sudan) and the Ma'di of Moyo (Uganda). However, the border was never formally demarcated. In 2014, a conflict was triggered by the Ugandan national census when Ugandan officials were detained by South Sudan authorities.
Area near Chiengi, Lunchinda-Pweto Province	Zambia DR Congo	Zambia and Congo have different interpretations of the borders set out in an 1894 treaty between British settlers and Leopold II, King of the Belgians. There have been incidents between the armies of both countries in 1996, 2006, and 2016. In March 2020, Zambia deployed troops on the Congolese side of the border.
Right bank of the Lunkinda River (near the village of Pweto)	DR Congo Zambia
Mayotte	France Comoros	Under the 2009 referendum, the population supported becoming an overseas department of France, so Mayotte became one on March 31, 2011.
Islands in Mbamba Bay, Lake Nyasa	Tanzania Malawi	Lundo Is. and Mbamba Is. are claimed as part of the lake, as Malawi has claims to the shore − based on the 1890 Anglo-German treaty. See Tanzania–Malawi dispute.
[es], Cocotiers and Congas Island	Gabon Equatorial Guinea	Contested islands in Corisco Bay, valuable for their oil.
Several islands in the Congo River	Republic of the Congo DR Congo	Most of the boundary in the Congo River remains undefined.
An island in the Ntem River	Cameroon Equatorial Guinea
Several villages near the Okpara River	Benin Nigeria
The Rufunzo Valley and Sabanerwa	Rwanda Burundi	In 1965, the Akanyaru River changed course due to heavy rains. Burundians point to Rwandan farmers for contributing to the change of course by rice-growing.
Rukwanzi Island and the Semliki River valley	DR Congo Uganda	The dispute is related to fishing rights in Lake Edward and Lake Albert.
Sindabezi Island	Zambia Zimbabwe	Tourist island on the Zambezi River, west of the Victoria Falls
Tromelin Island	France Mauritius Madagascar	De facto a part of the French overseas territory of the French Southern Territories.
Wadi Halfa Salient	Egypt Sudan	Most of the disputed territory comprised villages flooded by Lake Nasser after the construction of the Aswan Dam.

Americas

North America

Territory	Claimants	Notes
Bajo Nuevo Bank and Serranilla Bank	Colombia Honduras United States	Jamaica and Nicaragua have recognized the sovereignty of Colombia; other claimants have not. On November 19, 2012, the International Court of Justice (ICJ) ruled that Colombia has sovereignty over Bajo Nuevo Bank and Serranilla. Honduras implicitly recognized Colombian sovereignty in a 1999 maritime delimitation treaty, but continues to claim the two banks in its constitution.
Conejo Island	Honduras El Salvador
Navassa Island	United States Haiti	The U.S. has claimed the island since 1857, based on the Guano Islands Act of 1856. Haiti's claim over Navassa goes back to the Treaty of Ryswick in 1697 that established French possessions in mainland Hispaniola, which were transferred from Spain by the treaty as well as other specifically named nearby islands.
Sapodilla Cayes	Belize Guatemala Honduras	Guatemala formally claims all of Belize; an International Court of Justice decision over the matter is pending.
Belizean-Guatemalan territorial dispute	Belize Guatemala	The Guatemalan Ministry of Foreign Affairs has issued a statement in which Guatemala specifically claims territory between the Sibun and Sarstoon rivers, which makes up around half of Belizean-administered territory. However, Guatemala also claims all of Belize because its historical recognition of British Honduras was contingent on the construction of a road between Guatemala City and the Atlantic Ocean which was never built, an apparent violation of the Wyke-Aycinena Treaty. An International Court of Justice decision over the matter is pending.

Territorial disputes between Canada and the United States

Territory	Canadian claimant	U.S. claimant
Machias Seal Island	New Brunswick	Maine
North Rock	New Brunswick	Maine

South America

Territory	Claimants	Notes
Guyana–Venezuela territorial dispute (Guyana west of the Essequibo River) and Ankoko Island	Guyana Venezuela	Approximately two-thirds of Guyana's sovereign territory is claimed by Venezuela. Following arbitration, a demarcated border was established in 1905 following the Arbitral Award of 1899 but was later contested by Venezuela in 1962 following the publication of the Mallet-Prevost memorandum. The crisis was renewed recently following the discovery of oil deposits.
Arroyo de la Invernada or Rincón de Artigas and Vila Albornoz	Brazil Uruguay	Dispute in the 237 km² (92 sq mi) Invernada River region near Masoller, over which tributary represents the legitimate source of the Quaraí River/Cuareim River. The UN does not officially recognize the claim.^{[clarification needed]}
Falkland Islands and South Georgia and the South Sandwich Islands	United Kingdom Argentina	See Falkland Islands sovereignty dispute* and South Georgia and the South Sandwich Islands sovereignty dispute.*
French Guiana and Suriname involving the Maroni River	France Suriname	The source or tributary of the Lawa River between Suriname and French Guiana is disputed but eventually follows to the tripoint with Brazil. The Netherlands, and now Suriname, contends that the boundary follows the Malani River to the east, while France asserts that the border follows the Litani River to the west.
New River Triangle (Tigri Area) involving the Courantyne River and the New River	Guyana Suriname	The New River Triangle (also known as the Tigri Area) is a region within the Guiana Highlands that has been disputed by Suriname and Guyana since the 19th century. It involves the Courantyne River and the interpreted source of the river. In 1871, the New River was discovered, questioning the boundary between the two states.
Isla Brasilera/Ilha Brasileira	Brazil Uruguay	Uruguayan officials claim that the island falls under their Artigas Department (the UN does not officially recognize the claim).
Isla Suárez/Ilha de Guajará-mirim	Bolivia Brazil	An island in the river Rio Mamoré that serves as a border between Bolivia and Brazil, alongside the other 80 islands that are not assigned to any country. Isla Suárez is geographically closer to Bolivia, however economically dependent on the Brazilian city of Guajará-Mirim. Both countries signed a treaty in 1958 that keeps the island in a status quo.
Southern Patagonian Ice Field	Argentina Chile	From Mount Fitz Roy to Cerro Murallón the border remains undefined, while in the zone of Murallón and Cerro Daudet both countries already defined a border in 1998, but their respective cartographies differ.

Antarctica

The Antarctic Treaty, formed on 1 December 1959 and entered into force on 23 June 1961, is a key component for the management of Antarctica and helps provide administration for the continent, which is carried out through consultative member meetings.

Territory	Claimants	Antarctic territory
Area between 25°W and 53°W	Argentina United Kingdom	Argentine Antarctica British Antarctic Territory
Area between 53°W and 74°W	Argentina Chile United Kingdom	Argentine Antarctica Antártica Chilena Province British Antarctic Territory
Area between 74°W and 80°W	Chile United Kingdom	Antártica Chilena Province British Antarctic Territory

Asia

Territorial claims in the **South China Sea**

Map showing **disputed territories of India**

The final borders of the **Nagorno-Karabakh conflict** after the 1994 ceasefire was signed

Israel and the **Israeli-occupied territories**, including the **Golan Heights**, the **West Bank** and **East Jerusalem**

Territory	Claimants	Notes
Mazraat Deir al-Ashayer	Lebanon Syria	Mazraat Deir al-Ashayer is administered and controlled by Lebanon's Zahlé District, Beqaa Governorate, but claimed by Syria's Al-Zabadani District, Rif Dimashq Governorate.
Abu Musa	Iran United Arab Emirates	In 1971, the Iranian navy took control of Abu Musa, at the time part of the Emirate of Sharjah. The Emirate of Sharjah later joined the United Arab Emirates, who therefore inherited an official claim on Abu Musa. As of 2022, this is an ongoing dispute, with Iran in control of the island since its takeover in 1971.
Greater and Lesser Tunbs	Iran United Arab Emirates	Closely related to the dispute over Abu Musa, Iran had also around the same time seized control over the Greater and Lesser Tunbs while they were under control by the Emirate of Ras al-Khaimah. When Ras al-Khaimah joined the United Arab Emirates, the dispute was also inherited to the UAE. The dispute is still ongoing as of 2022.
Bukit Jeli	Thailand Malaysia
Azad Kashmir and Gilgit-Baltistan	Pakistan India	Administered by Pakistan and claimed by India. Part of the Kashmir conflict.
Jammu and Kashmir and Ladakh	India Pakistan	Part of the Kashmir conflict. Both India and Pakistan claim the former independent princely state of Jammu and Kashmir (including Ladakh, which India split off from the portion that it controls in 2019), leading to the Indo-Pakistani war of 1947. A UN-mediated ceasefire put a halt to the conflict in January 1949. The UN resolution called for both the countries to demilitarise the region, following which a plebiscite would be held. However, no demilitarisation plan acceptable to both the countries could be agreed. The countries fought two further wars in 1965 and 1971. Following the latter war, the countries reached the Simla Agreement, agreeing on a Line of Control between their respective regions and committing to a peaceful resolution of the dispute through bilateral negotiations. An armed insurgency broke out in 1989 in the Indian administered part of Kashmir, demanding "independence". Pakistan has provided arms and training to the militants.
Junagadh and Manavadar	India Pakistan	India annexed Junagadh (located within Gujarat) in 1947, shortly after the partition of India. Junagadh was one of the many princely states that was contested between India and Pakistan; Manavadar was a vassal state of Junagadh, alongside Babariawad and Mangrol. The dispute fell into obscurity over the next few years due to the prioritisation of the Kashmir conflict. In August 2020, Pakistan revived the decades-old dispute by highlighting "Junagadh and Manavadar" as a part of Pakistan in an official map on its "Survey of Pakistan" website. The dispute is largely symbolic in nature and is politically connected to the dispute over Kashmir, which is much more important to Pakistan.
David Gareja monastery complex boundary dispute	Georgia Azerbaijan	Since the monastery complex is located on the border between Georgia and Azerbaijan, both parties have entered a dispute over which nation it belongs to.
Doi Lang	Myanmar Thailand
Fasht ad Dibal and Qit'at Jaradah	Bahrain Qatar	These are island territories that are disputed between Qatar and Bahrain. Controlled by Bahrain, Qatar argues that the territories do not qualify as "islands" and hence are not covered by the International Court of Justice ruling (2001–2003) that handed them over to Bahrain.
Several areas in the Fergana Valley	Kyrgyzstan Tajikistan Uzbekistan	Kyrgyzstan: Barak is a tiny Kyrgyz village in the Fergana Valley region (where Kyrgyzstan, Tajikistan and Uzbekistan meet). In August 1999, the area around Barak was occupied by Uzbekistan. Barak became a de facto enclave only 1.5 km from the shifted main border. (Map) In August 2018, Kyrgyz and Uzbek authorities agreed to a land swap that would eliminate the exclave, claiming that the exchange process may take up to two years. As of a February 2022 report, only 85 percent of the land was traded, and then work stopped, leaving only 15 families to preserve Barak.Tajikistan: There are three Tajik exclaves, all of them in the Fergana Valley. One of them, the village of Sarvan, is surrounded by Uzbek territory, whereas the remaining two, the village of Vorukh and a small settlement near the Kyrgyz railway station of Kairagach, are each surrounded by Kyrgyz territory. Uzbekistan: There are four Uzbek exclaves, all inside Kyrgyz territory in the Fergana Valley. Two of them are the towns of Sokh and Shakhimardan and the other two the tiny territories of Chon-Qora and Jani-Ayil. There may be a fifth Uzbek exclave inside of Kyrgyzstan. Most of the border in the area is still not demarcated.
Isfara Valley	Kyrgyzstan Tajikistan	In April 2021, a violent disagreement broke out in Isfara Valley, supposedly over the installation of surveillance cameras by the Tajiks at a water intake station of a reservoir. It escalated into an armed conflict that reached hundreds of civilian casualties. The area's dispute is mainly due to faulty allocation of resources during and after the breakup of the Soviet Union and its republics, leading to tense relations between nations over said allocation of resources, namely water.
Ambalat	Indonesia Malaysia
Golan Heights	Israel Syria	Syrian territory captured by Israel in 1967 (the Six-Day War), and unilaterally annexed by Israel in 1981. In 2008, a plenary session of the United Nations General Assembly voted by 161–1 in favor of a motion on the "occupied Syrian Golan" that reaffirmed support for UN Resolution 497; United Nations, December 5, 2008). During the Syrian civil war period, Syrian Arab Republic had lost direct control of the Eastern Golan areas and retreated from cease-fire line with Israel (in favor of various rebel and Jihadist groups), though did regain the area in 2018.
Hatay Province	Turkey Syria	Annexed by Turkey in 1939, claimed by Syria.
Shebaa Farms	Israel Lebanon Syria
Israel within the Green Line	Israel Palestine	See Israeli–Palestinian conflict
West Bank and East Jerusalem	Israel Civilian rule by Israel proper applied in East Jerusalem Military occupation has jurisdiction over all matters in Area C and security-related matters in Area B Palestine has jurisdiction over all matters in Area A and civil matters in Area B	See Israeli occupation of the West Bank
Kalapani region, the smaller Susta River dispute and Antudanda disputes	India Nepal	Kalapani is administered by India while Susta is administered by Nepal. The few remaining border disagreements with Nepal since delineation was announced 98% complete in 2019. See Territorial disputes of India and Nepal.
The exclave Artsvashen of the Gegharkunik province	Azerbaijan Armenia Artsvashen is internationally recognized as part of Armenia	Azerbaijan and Armenia have controlled these areas as part of the wider Nagorno-Karabakh conflict.
Karki exclave of the Nakhichevan Autonomous Republic The three exclaves Barkhudarli, Sofulu and Yukhari Askipara of the Qazax District	Armenia Azerbaijan All four exclaves are internationally recognized as part of Azerbaijan
Khuriya Muriya Islands	Oman Yemen
Korean Peninsula	North Korea South Korea	The Democratic People's Republic of Korea administers North Korea, but Article 1 of the Constitution of North Korea reads: "The Democratic People's Republic of Korea is an independent socialist State representing the interests of all the Korean people." The Republic of Korea administers South Korea, but Article 3 of the Constitution of South Korea reads: "The territory of the Republic of Korea shall consist of the Korean peninsula and its adjacent islands."
South Kuril/Chishima Islands (Northern Territories), Kuril/Chishima Islands, and South Sakhalin	Russia Japan	After the end of World War II, the Japanese government renounced its claims of the sovereignty over the Kuril Islands (except for a few islands in the south) and South Sakhalin in The Treaty of San Francisco. However, since the Soviet Union did not sign that treaty and the treaty did not explicitly approve Russian sovereignty over these areas, the Japanese government has stated that attribution of these regions has not yet been determined. Therefore, they do not recognize Soviet rule in those areas (current the Russian Federation). For this reason, these lands are shown as No Man's Land in white color on most official maps in Japan.
Dokdo/Takeshima	South Korea North Korea Japan	The Liancourt Rocks, known as Dokdo in Korean and Takeshima in Japanese, are a set of disputed islets in the Sea of Japan. Japan claims sovereignty over the islets, pointing out the fact that in the San Francisco Peace Treaty of 1951, Dokdo/Takeshima was not included among the territories to be renounced by Japan. South Korea currently maintains control over the territory, which it has administered since June 1954. The status of Dokdo/Takeshima remains a point of contention between the two countries.
Islands in the Mekong river	Laos Thailand
Noktundo	Russia South Korea	In 1990, the former Soviet Union and the Democratic People's Republic of Korea (North Korea) signed a border treaty which made the border run through the center of the Tumen river, leaving Noktundo as a former island in Russia. South Korea refused to acknowledge the treaty.
"Pedra Branca"; several islets at the eastern entrance to the Singapore Strait	Singapore Malaysia	The International Court of Justice rendered its decision on 23 May 2008 that sovereignty over Pedra Branca belongs to Singapore; sovereignty over Middle Rocks belongs to Malaysia. It said sovereignty over South Ledge would remain disputed until the states could determine the ownership of the territorial waters in which it is located.
"Point 20"; a small area of land reclaimed from the sea by Singapore	Singapore Malaysia	Malaysia claims the land was reclaimed in its territorial waters.
O'Tangav area (claimed as part of Stung Treng Province)	Laos Cambodia
Area near Preah Vihear Temple (Khao Phra Wihan)	Thailand Cambodia	Temple complex awarded to Cambodia by an International Court of Justice ruling in 1962; "promontory" measuring 0.3 km² immediately adjacent to temple awarded to Cambodia by ICJ ruling in 2013; both countries acknowledge continuing dispute over an additional 4.3 km² immediately northwest of the 2013 ruling's area.
Part of Sabah (North Borneo)	Malaysia Philippines	The Philippines retains a claim on the eastern part of Sabah (see North Borneo dispute) on the basis claimed by the Government of the Philippines that the territory is only leased by the former Sultanate of Sulu to British North Borneo Company, of which the Philippines argued that it should be the successor state of all Sulu past territories.
Saudi Arabia–United Arab Emirates border dispute	Saudi Arabia United Arab Emirates
Siachen Glacier and Saltoro Ridge area	India Pakistan	Controlled by India after Operation Meghdoot in 1984.
Sir Creek	India Pakistan	A dispute over where in the estuary the line falls; only small areas of marsh land are disputed, but significant maritime territory is involved. It is divided mid-creek.
Parts of Three Pagodas Pass	Myanmar Thailand
The islands of Ukatnyy, Zhestky and Malyy Zhemchuzhnyy	Russia Kazakhstan
Ungar-Too (Ungar-Tepa) mountain	Uzbekistan Kyrgyzstan
(Truso Gorge, , )	South Ossetia Georgia South Ossetia is internationally recognized as a proxy of Russia	Ossetia claims two gorges and their connecting plateau, all controlled by Georgia as part of the Kazbegi Municipality, as "historically eastern Ossetian lands." South Ossetia claims to have attempted to press these claims during the Russo-Georgian War, but was deterred by Russia, with the issue flaring again in 2018 and 2019.

Europe

As of January 2023, Russian President **Vladimir Putin** cited recognition of Russia's sovereignty over the **annexed territories** (pictured) as a condition for **peace talks** with Ukraine.

Territory	Claimants	Notes
Crimea (including Sevastopol)	Russia Ukraine	In 2014, Russia annexed the Crimean Peninsula in a disputed referendum. Russian ownership of Crimea is recognized by a minority of countries. The General Assembly Resolution 68/262 by votes 100 "in favor", 11 "against", 58 "abstained" and 24 abstentions noted that Crimea was part of Ukraine. Nonetheless, Crimea is practically a de facto subdivision of Russia as most of the control is in Russia's hands. Russia and Ukraine both divide Crimea into two subdivisions, including a "republic" (Ukraine's Autonomous Republic and Russia's Republic) and the independent city of Sevastopol (Ukraine's "special city" and Russia's "federal city").
Donetsk Oblast	Ukraine Russia	See Russian invasion of Ukraine.
Kherson Oblast
Luhansk Oblast
Zaporizhzhia Oblast
Outer Kinburn Peninsula (located within Mykolaiv Oblast)
Snihurivka's environs (located within Ukraine's Mykolaiv Oblast)	Ukraine Russia	This part of Mykolaiv was under Russia's control when Russian unilaterally annexed Kherson oblast, but Russia has since withdrawn during the Liberation of Kherson. During Russian control, a referendum was held in Snihurivka and in the surrounding area in which it joined Russia's Kherson Oblast; this referendum, whilst recognised by Russia, is not recognised by Ukraine.
Ivangorod/Jaanilinn and Pechorsky District/Petserimaa	Russia Estonia	In 1917, the Autonomous Governorate of Estonia was formed by merging the governorates of Estonia and (parts of) Livonia. In the same year, a referendum was held in the midst of the Russian Revolution, joining Narva (and Ivangorod) to the governorate, which were previously part of Saint Petersburg Governorate. The south-eastern border was based on old provincial borders, which lay west of the present border. Under the 1920 Treaty of Tartu, the border of the newly established Republic of Estonia was set eastwards after border talks, incorporating the later-formed Petseri County. Estonia was occupied and annexed by the USSR in 1940. In 1944, decrees of the USSR Presidium of the Supreme Soviet, set the northeastern border along Narva river, re-ceding Ivangorod to Leningrad Oblast (but keeping Narva within the Estonian SSR) and select volosts/parishes of Petserimaa to Pskov Oblast. The Estonian constitution still references the 1920 treaty as the border. Repeated attempts to resolve the border dispute have de jure failed, as no border treaty has been ratified. The unratified agreement does, however, renounce Estonian claims to these lands, in addition to acknowledgements of the de facto situation by heads of state and government at various points.
Imia/Kardak	Greece Turkey	Broad number of delimitation disputes about a.o. national airspace, territorial waters and exclusive economic zones. Includes Imia/Kardak dispute.
Mont Blanc summit dispute	France Italy	France asserts that the principal peaks on the Mont Blanc massif—Dôme du Goûter, Punta Helbronner, and Mont Blanc lie in French territory, while Italy asserts that the summits are shared.
Gibraltar	United Kingdom Spain	Dispute over the interpretation of the Treaty of Utrecht and the location of the border.
Rockall Bank dispute	Ireland United Kingdom Denmark Iceland	Rockall is an uninhabited islet in the North Atlantic Ocean with disputed claims to its basin.
Olivenza and Vila Real (including the Municipality of Táliga)	Spain Portugal	In 1801, during the War of the Oranges, Spain, with French military support, occupied the territory of Olivenza (in Portuguese Olivença). During the Vienna Treaty, the signatory powers (including Spain) agreed with the Portuguese arguments concerning its claim on Olivença but Spain never fulfilled its duty of giving the city of Olivença and its territory back to Portugal.
Croatia-Serbia border dispute	Croatia Serbia	Limited areas along the Danube Parts of Osijek-Baranja and Vukovar-Syrmia Counties and West and South Bačka Districts.
Island of Šarengrad
Island of Vukovar
Military complex near Sveta Gera	Slovenia Croatia	The complex is in the area of Žumberak/Gorjanci
Drina river	Bosnia and Herzegovina Serbia	Sections along the Drina in dispute.
Prevlaka	Croatia Montenegro
An area on the Dragonja River	Slovenia Croatia
K Island	Ukraine Romania

Oceania

Territory	Claimants	Notes
Matthew Island and Hunter Island	France ( New Caledonia) Vanuatu
Minerva Reefs	Tonga Fiji	Fiji claims that the entire reef is submerged at high tide, negating use of Minerva as a basis for any sovereignty or maritime EEZ claim by Tonga under the rules of UNCLOS.
Swains Island	United States Tokelau	Tokelau's claim is unsupported by New Zealand, of which Tokelau is a dependency. New Zealand recognises US sovereignty over Swains Island.^{[clarification needed]}
Wake Island	United States Marshall Islands

Ongoing disputes involving states with limited international recognition

Territory	Claimants	Notes
Abagaitu Islet	Russia China Republic of China	Generally held to have been resolved in October 2004 by the Complementary Agreement between the People's Republic of China and the Russian Federation on the Eastern Section of the China-Russia Boundary. However, the settlement is not recognized by the Republic of China, which would consider the Argun as the basis of the Sino-Russian border there per the Treaty of Nerchinsk of 1689.
Abkhazia	Abkhazia Georgia
Aksai Chin and Depsang Plains	China Republic of China India
Arunachal Pradesh	India China Republic of China	Controlled by India but claimed by the PRC and ROC who dispute the validity of the McMahon Line.
Bạch Long Vĩ Island	Vietnam Republic of China	Transfer to Vietnam by the PRC in 1957. However, the settlement is not recognized by the Republic of China.
Chinese side of Baekdu Mountain	China South Korea Republic of China	Settled by the PRC and DPRK in 1962. However, the settlement is not recognized by the Republic of China, and the Republic of Korea.
Korean side of Baekdu Mountain	North Korea South Korea Republic of China	Also formerly claimed by the PRC until 1962.
Beyul Khenpajong, the Menchuma Valley, and Chagdzom	Bhutan China Republic of China
Eastern part of Bhutan	Bhutan Republic of China
Bhutanese exclaves in western Tibet, namely Cherkip Gompa, Dho, Dungmar, Gesur, Gezon, Itse Gompa, Khochar, Nyanri, Ringung, Sanmar, Darchen, Doklam, and Zuthulphuk	China Republic of China Bhutan
Demchok sector / Parigas region	India China Republic of China
Chumar, Gue, Kaurik, Shipki La, Tashigang, Barahoti, Lapthal, Jadhang, Nelang, Pulam Sumda and Sang	India China Republic of China	Controlled by India but claimed by Zanda County, Ngari Prefecture, Tibet, China. Disputed areas located between Aksai Chin and Nepal.
3,700 square miles (9,600 km²) of territory surrounding the Siachen Glacier in Gilgit-Baltistan	Pakistan India Republic of China	The People's Republic of China relinquished its claim to Pakistan. India and the Republic of China did not.
James Shoal	Malaysia China Republic of China	The Republic of China would claim its southernmost point to be at 4°N.
North Cyprus	Northern Cyprus Cyprus	Northern Cyprus (a state with limited recognition) controls and administers the northern part of the island. The Republic of Cyprus claims the whole island.
Mainland China, Hong Kong, Macau, western half of Heixiazi, and Macclesfield Bank	China Republic of China
Moldovan-controlled area of Dubăsari district	Moldova Transnistria
Kokkina/Erenköy exclave	Northern Cyprus Cyprus	Northern Cyprus controls and administers Kokkina, an area separated from the rest of the main land on Northern Cyprus via the land controlled by the Republic of Cyprus.
Heixiazi / Bolshoy Ussuriysky Island (eastern half)	Russia Republic of China	Generally held to have been resolved in October 2004 by the Complementary Agreement between the People's Republic of China and the Russian Federation on the Eastern Section of the China-Russia Boundary. However, the settlement is not recognized by the Republic of China, which would claim its easternmost point to be at 135°4′E.
Jiangxinpo	Myanmar Republic of China	Northern parts of Sagaing Region and Kachin State, claimed by the Republic of China as part of Yunnan. Formerly claimed by the People's Republic of China until 1961.
537 km² of territory on the China–Kazakhstan border	Kazakhstan Republic of China	The Kazakh Government ceded 407 km² to the PRC, and the PRC ceded 537 km² to Kazakhstan in 1999. However, the settlement is not recognized by the Republic of China.
Khan Tengri peak, the Boz-Tik site, the Bedel pass, and the Erkeshtam pass	Kyrgyzstan Republic of China	In an agreement signed in 1999, the Khan Tengri peak, the Boz-Tik site, the Bedel pass, and the Erkeshtam pass were ceded to the Kyrgyz government while the Uzongu-Kuush valley was ceded to the PRC. However, the settlement is not recognized by the Republic of China.
Kinmen, Matsu, Pratas Island, and the Vereker Banks	Republic of China China	The government of the People's Republic of China claims the entire island of Taiwan, as well as a number of minor islands, such as Penghu, Kinmen, and Matsu, that are controlled by the Republic of China. See also: Anti-Secession Law, Political status of Taiwan.
Kosovo	Kosovo Serbia	Kosovo is the subject of a territorial dispute between the Republic of Serbia and the self-proclaimed Republic of Kosovo. The latter declared independence on 17 February 2008, while Serbia claims it as part of its own sovereign territory. Its independence is recognized by 104 UN member states.
Kula Kangri and mountainous areas to the west of this peak, plus the western Haa District of Bhutan	Bhutan China Republic of China
Kutuzov Island	Russia Republic of China
Namwan Assigned Tract	Myanmar Republic of China	Settled by Myanmar and the PRC in the Sino-Burmese Boundary Treaty in 1960 and officially ceded to Myanmar in 1961. However, the settlement is not recognized by the Republic of China.
Outer Mongolia	Mongolia Republic of China	The Republic of China briefly recognized Mongolia's independence between 1945 and 1952, and from 2002 onwards; however, under the Constitution of the Republic of China, the ROC claim on Mongolia cannot be withdrawn without recourse to a referendum. This claim is expressed by the map of China which appears in the flag of the Republic of China Marine Corps since 1986, which comprises Mainland China, Jiangxinpo, Outer Mongolia, Pamir Mountains, Tannu Uriankhai, etc.
Pamir Mountains	Tajikistan Republic of China	The Tajik Government ceded 1,158 km² to the PRC, while PRC relinquished its 73,000 km² claim over the remaining territory with final ratification of a treaty in January 2011. However, the settlement is not recognized by the Republic of China, which would claim its westernmost point to be at 71°E along the Panj.
Paracel Islands	China Republic of China Vietnam	Entirely controlled by the People's Republic of China but claimed by the Republic of China and Vietnam.
Parangcho	South Korea China Republic of China
Rasu, Kimathanka, Nara Pass, Tingribode, and Mount Everest	Nepal Republic of China	Settled by Nepal and the PRC in 1960. However, the settlement is not recognized by the Republic of China.
Scarborough Shoal	China Republic of China Philippines	Controlled by the PRC since the 2012 Scarborough Shoal standoff.
Sakteng Wildlife Sanctuary	Bhutan China Republic of China
Senkaku Islands (Diaoyu Tai or Diaoyu Dao)	Japan China Republic of China	Controlled by Japan but claimed by the PRC and ROC.
Sixty-Four Villages East of the River	Russia Republic of China	The People's Republic of China renounced the area in the 1991 Sino-Soviet Border Agreement. Yet the Republic of China would claim the area per the 1858 Treaty of Aigun, affirmed as part of the 1860 Sino-Russian Convention of Peking.
South Ossetia	South Ossetia Georgia
Spratly Islands	China Republic of China Vietnam Philippines (part) Malaysia (part) Brunei (part)	Each of the claimant countries except Brunei controls one or more of the individual islands.
'Border' checkpoint near Strovilia	United Kingdom Northern Cyprus	Northern Cyprus controls and administers the border checkpoint near Strovilia. UK's claim in regard to its Sovereign Base Areas. This also involves Cyprus; the checkpoint is partially on UN-administered land, and Cyprus claims all of the island. (See: Europe)
Taiwan and Penghu	Republic of China China	In 1945, after the surrender of Japan, the Republic of China unilaterally annexed the islands of Taiwan and Penghu into its Taiwan Province, a move not recognized by the Allies. Shortly before the cessation of hostiles in the Chinese Civil War, the ROC government withdrew to the island of Taiwan, which remained under military occupation. Japan formally relinquished the claims to Taiwan and Penghu in 1952 under the Treaty of San Francisco. The sovereignty of Taiwan has remained in question to this day. See also the Political status of Taiwan.
Trans-Karakoram Tract, including Shaksgam Valley	China Republic of China India	Pakistan was originally a party to the dispute but relinquished its claim and accepted Chinese sovereignty over the area in 1963.
Transnistria (including Bender)	Transnistria Moldova
Tannu Uriankhai	Russia Republic of China	Originally part of China during the Qing dynasty per the 1727 Treaty of Kyakhta but came under Russian influence in the 20th century. Sovereignty over the area has not been officially relinquished by the ROC, which would claim its northernmost point to be at 53°57'N in the Sayan Mountains. However, the claim is not actively pursued by the ROC government.
Tumen River (disputed sovereignty of certain islands)	China North Korea Republic of China South Korea	The Republic of China would consider the 1909 Gando Convention as the basis of the China–North Korea border.
Tumen River mouth	North Korea South Korea Republic of China	Navigation and control of the mouth of the river Tumen is disputed between the Republic of China and DPRK along with the Republic of Korea.
Varnita and Copanca	Moldova Transnistria
Eastern part of Wakhan Corridor	Afghanistan Republic of China	The border was established between Afghanistan and China in an agreement between the British and the Russians in 1895 as part of the Great Game, although the Chinese and Afghans did not finally agree on the border until 1963. The Kingdom of Afghanistan and the People's Republic of China demarcated their border in 1963. However, the settlement is not recognized by the Republic of China.
Western Sahara	Morocco Sahrawi Arab Democratic Republic	The United Nations keeps the Western Sahara in its list of non-self-governing territories and considers the sovereignty issue as unresolved pending a final solution. To that end, the UN sent a mission in the territory to oversee a referendum on self-determination in 1991, but it never happened. Administration was relinquished by Spain in 1976.
Yalu River (disputed sovereignty of certain islands)	China North Korea Republic of China South Korea	Generally held to have been resolved in 2005. North Korea is allocated all of the large islands in the lower Yalu River, including Pidan and Sindo at the mouth. The river's maritime rights remain shared between North Korea and the PRC. However, the settlement is not recognized by the Republic of China.

Ongoing boundary disputes within a state

Territory	Country	Internal claimants	Notes
Several islands in the Paraná River	Argentina	Entre Ríos Santa Fe	Islands: Isla de los Mástiles/La Carlota, Isla Ingeniero Sabino Corsi Norte/Sur and Isla General Juan Pistarini.
As much as a 2,821 square kilometres (1,089 sq mi) area in and around the Ibiapaba mountain range	Brazil	Ceará Piauí	This dispute originated in an 1880 imperial decree. In 1920 a solution to the dispute was arbitrated but in practice it was never carried out. In 2008 there were new attempted negotiations, but they broke down in 2011, and as of 2013 it is pending either a supreme court decision, a referendum or a possible mutual agreement.
Fernando de Noronha	Brazil	Pernambuco Rio Grande do Norte	The dispute dates from the colonial period.
Belén de Bajirá	Colombia	Antioquia Chocó	Disputed since 2000, both Departments of Antioquia and Chocó have claimed the corregimiento as part of their own respective municipalities. In 2014, amidst a rise of tensions between the claimants, the National Government under the Geographic Institute Agustín Codazzi formally started a process to find a solution for the dispute.
The kebeles of Adaytu, Undufo, and Gedamaytu	Ethiopia	Afar Somali Region	The three towns have long been fought over by the Issa clan Somalis, backed by the Somali Region government, against the Afar Region and Afar-allied militants. In 2014, the border between the two regions was redrawn by the federal government, placing the three ethnic Somali towns inside the Afar region. In the same year, the presidents of the two regions signed an agreement recognizing the three kebeles as special kebeles within the Afar Region which was rejected by the local people. Later in 2019, the Somali Region withdrew from the agreement, claiming the three areas again. The conflict between the two people has also spilled over into Djibouti.
Parts of the Baitarani River in Jharkhand	India	Jharkhand Odisha
Small areas in Balasore district and Mayurbhanj district		Odisha West Bengal
Belgaum		Karnataka Maharashtra	Belgaum district was made a part of the Karnataka state following the States Reorganisation Act, 1956. However, Maharashtra claims the district and surrounding areas as predominantly Marathi-speaking and should be merged with Maharashtra.
Golaghat district, Jorhat district, and Sibsagar district		Assam