Japan-China-Taiwan: the Japanese-administered Senkaku Islands (Diaoyu Tai) are also claimed by China and Taiwan; Senkaku-shoto is situated near key shipping lanes, rich fishing grounds, and possibly significant oil and natural gas reserves

Japan-Russia: the 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-South Korea: Japan and South Korea claim Liancourt Rocks (Take-shima/Tok-do) occupied by South Korea since 1954

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

Russia-China: Russia and China 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

Russia-Denmark-Norway: 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

Russia and Estonia: 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; negotiations were reopened in 2012, and a treaty was signed in 2014 without the disputed preamble, but neither country has ratified it as of 2020

Russia-Finland: 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-Georgia: Russia's military support and subsequent recognition of Abkhazia and South Ossetia independence in 2008 continue to sour relations with Georgia; in 2011, Russia began to put up fences and barbed wire to fortify South Ossetia, physically dividing villages in the process; Russia continues to move the South Ossetia border fences further into Georgian territory

Russia-Japan: 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-Kazakhstan: Russia boundary delimitation was ratified on November 2005; field demarcation commenced in 2007 and was expected to be completed by 2013

Russia-Lithuania: Russia and Lithuania 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; border demarcation was completed in 2018; 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

Russia-North Korea: none identified

Russia-Norway: Russia and Norway signed a comprehensive maritime boundary agreement in 2010, opening the disputed territory for oil and natural gas exploration; a visa-free travel agreement for persons living near the border went into effect in May 2012

Russia-Ukraine: Russia remains involved in the conflict in eastern Ukraine while also occupying Ukraine’s territory of Crimea; 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

Russia-US: Russian Duma has not yet ratified 1990 Bering Sea Maritime Boundary Agreement with the US; the southwesterly "Western Limit" places about 70% of the Bering Sea under U.S. maritime jurisdiction

Russia-various: 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

Israel-Gaza Strip: Israel withdrew its settlers and military from the Gaza Strip and from four settlements in the West Bank in August 2005

Israel-Syria: 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

Israel-West Bank: West 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