Abagaitu Islet (; , Bolshoy Ostrov) is an islet in the

Argun River (Asia) The Argun or Ergune ( zh, 额尔古纳河) is a long river that forms part of the eastern China–Russia border, together with the Amur. Its upper reaches are known as the Hailar River () in China. The Argun marks the border (established by t ...

divided Division is one of the four basic operations of arithmetic. The other operations are addition, subtraction, and multiplication. What is being divided is called the ''dividend'', which is divided by the ''divisor'', and the result is called the ...

between the

People's Republic of China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

(

Inner Mongolia Autonomous Region Inner Mongolia, officially the Inner Mongolia Autonomous Region, is an autonomous region of China. Its border includes two-thirds of the length of China's border with the country of Mongolia. Inner Mongolia also accounts for a small section of C ...

) and

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

(

Chita Oblast Chita Oblast ( rus, Чити́нская о́бласть, r=Čitínskaja óblastj, p=tɕɪˈtʲinskəjə ˈobləsʲtʲ) was a federal subject of Russia (an oblast) in southeast Siberia, Russia. Its administrative center was the city of Chita. ...

). Its area is . The island was occupied by the

Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

in 1929, a move not accepted by China, resulting in a border dispute that lasted more than seventy years. On October 14, 2004, the Complementary Agreement between the People's Republic of China and the Russian Federation on the Eastern Section of the China–Russia Boundary was signed, in which Russia agreed to relinquish control over a part of Abagaitu Islet. In 2005, the Russian Duma and the Chinese National People's Congress approved the agreement.

References

Russian map
{{reflist River islands of China Landforms of Inner Mongolia River islands of Russia International islands Bodies of water of Zabaykalsky Krai China–Russia border

See also

References