China–Russia border



The Chinese–Russian border or the Sino-Russian border is the international border between China and Russia. After the final demarcation carried out in the early 2000s, it measures 4,209.3 km, and is the world's sixth-longest international border. According to the Russian border agency, as of October 1, 2013, there are more than 160 land border crossings between Russia and China, all of these border crossings are open 24 hours. There are crossing points established by the treaty including railway crossings, highway crossings, river crossing, and mostly ferry crossings.

Description
The eastern border section is over 4000 km in length. According to a joint estimate published in 1999, it measured at 4195 km. It starts at the eastern China–Mongolia–Russia tripoint (49.84508°N, 116.713°W), marked by the border monument called Tarbagan-Dakh (Ta'erbagan Dahu, Tarvagan Dakh). From the tripoint, the border line runs north-east, until it reaches the Argun River. The border follows the Argun and Amur river to the confluence of the latter with the Ussuri River. It divides the Bolshoy Ussuriysky Island at the confluence of the two rivers, and then runs south along the Ussuri. The border crosses Lake Khanka, and finally runs to the south-west. The China–Russia border ends when it reaches the Tumen River, which is the northern border of North Korea. The end point of the China–Russia border, and the China–North Korea–Russia tripoint, at (42.41667°N, 130.6°W), is located only a few kilometers before the river flows into the Pacific Ocean, the other end of the North Korea–Russia border.

The much shorter (less than 100 km) western border section is between Russia's Altai Republic and China's Xinjiang. It runs in the mostly snow-covered high elevation area of the Altai Mountains. Its western end point is the China–Kazakhstan–Russia tripoint, whose location is defined by the trilateral agreement as 49.115°N, 87.28667°W, elevation, 3327 m. Its eastern end is the western China–Mongolia–Russia tripoint, at the top of the peak Tavan Bogd Uul (Mt Kuitun), at the coordinates 49.17042°N, 87.81564°W.

Tsarist era (pre-1917)
Today's Sino-Russian border line is mostly inherited by Russia (with minor adjustments) from the Soviet Union, while the Sino-Soviet border line was essentially the same as the border between the Russian and Qing Empires, settled by a number of treaties from the 17th through to the 19th centuries. Border issues first became an issue following Russia's rapid expansion into Siberia in the 17th century, with intermittent skirmishes occurring between them and Qing China. Below is a list of important border treaties, along with the indication as to which section of today's Sino-Russian border were largely set by them:
 * Treaty of Nerchinsk (1689) - this covered the far eastern section of the border, creating a line along the Argun River and Shilka River, then proceeding overland via the Stanovoy Mountains, and then along the Uda river, terminating at the Tugur peninsula by the Sea of Okhotsk.
 * Treaty of Kyakhta (1727), plus supplementary protocols of the same year - these were concerned mostly with the border line that is currently the Mongolia–Russia border (Mongolia then being part of China), this fixing a line from the river Irtysh in the west to the Argun in the east.
 * Treaty of Aigun (1858) - this shifted the eastern border to run along the Amur River out to the Okhotsk.
 * Convention of Peking (1860) - this finalised the eastern stretch of the border, with China ceding to Russia the territory of modern Primorsky Krai and southern Khabarovsk Krai.
 * Treaty of Tarbagatai (1864) - this created the western section of the border in Central Asia, with the bulk of this border now forming China's borders with Kazakhstan, Kyrgyzstan and Tajikistan (with modifications). The border was modified via later treaties such as the Treaty of Saint Petersburg (1881), though the modern Russian section remained at the same place.
 * Qiqihar Agreement (1911) - modified the eastern border along the Argun slightly, however China later repudiated the treaty.

Sino-Soviet border (1917–1991)
Following the Russian Revolution in 1917 and the later formation of the Soviet Union, there have been a number of issues along the border:
 * In 1911 Outer Mongolia declared independence from China; the USSR recognised the country in 1921, thus removing a large part of the China-USSR border and splitting it into two sections. China later recognised Mongolian independence in 1946.
 * Sino-Soviet conflict (1929) - a conflict largely centred on the Chinese Eastern Railway.
 * Sino-Soviet border conflict (1969) - this was a serious seven-month undeclared military conflict between the Soviet Union and China at the height of the Sino-Soviet split in 1969 (China having been taken over by Communists in 1949). Although military clashes ceased that year, the underlying issues were not resolved until the 1991 Sino-Soviet Border Agreement. The most serious of these border clashes, which brought the two countries to the brink of all-out war, occurred in March 1969 in the vicinity of Zhenbao (Damansky) Island on the Ussuri (Wusuli) River; as such, Chinese historians most commonly refer to the conflict as the Zhenbao Island Incident. Heavily militarised following the war, the border slowly opened after 1982, allowing the first exchange of goods between the two countries, though the territorial disputes remained unresolved. Between 1988 and 1992 the cross-border commerce between Russia and Heilongjiang province increased threefold, with the number of legal Chinese workers in Russia increasing from 1,286 to 18,905.

Three countries bordered both China and the Soviet Union: Afghanistan, Mongolia and North Korea. Both the Democratic Republic of Afghanistan and Mongolian People's Republic were pro-Soviet satellite states during the Cold War, while the Democratic People's Republic of Korea was neutral.

Post-1991
The waning years of the Soviet Union saw a reduction of the tensions on the then heavily fortified Sino-Soviet border. In 1990–91, the two countries agreed to significantly reduce their military forces stationed along the border. To this day one can find numerous abandoned military facilities in Russia's border districts.

Even though the Sino-Soviet border trade resumed as early as 1983–85, it accelerated in 1990–91; the rate of cross-border trade continued to increase as the USSR's former republics became separate states. To accommodate increasing volume of travel and private trade, a number of border crossings were re-opened. In early 1992, China announced border trade incentives and the creation of special economic zones (SEZs) along the Sino-Russian border, the largest of these being in Hunchun, Jilin.

In 1991, China and USSR signed the 1991 Sino-Soviet Border Agreement, which was intended to start the process of resolving the border disputes held in abeyance since the 1960s. However, just a few months later the USSR was dissolved, and four former Soviet republics — Russia, Kazakhstan, Kyrgyzstan, and Tajikistan — inherited various sections of the former Sino–Soviet border.

It took more than a decade for Russia and China to fully resolve the border issues and to demarcate the border. On May 29, 1994, during Russian Prime Minister Viktor Chernomyrdin's visit to Beijing, an "Agreement on the Sino-Russian Border Management System intended to facilitate border trade and hinder criminal activity" was signed. On September 3, a demarcation agreement was signed for the short (55 km) western section of the binational border; the demarcation of this section was completed in 1998.

In November 1997, at a meeting in Beijing, Russian President Boris Yeltsin and General Secretary and Chinese President Jiang Zemin signed an agreement for the demarcation of the much longer (over 4000 km) eastern section of the border, in accordance with the provisions of the 1991 Sino-Soviet agreement.

The last unresolved territorial issue between the two countries was settled by the 2004 Complementary Agreement between China and Russia on the Eastern Section of the China–Russia Boundary. Pursuant to that agreement, Russia transferred to China a part of Abagaitu Islet, the entire Yinlong (Tarabarov) Island, about half of Bolshoy Ussuriysky Island, and some adjacent river islets. The transfer was ratified by both the Chinese National People's Congress and the Russian State Duma in 2005, thus ending the decades-long border dispute. The official transfer ceremony was held on-site on October 14, 2008.

Border management
As with many other international borders, a bilateral treaty exists concerning the physical modalities of managing the China–Russia border. The currently valid agreement was signed in Beijing in 2006.

The treaty requires the two states to clear trees in a 15 m-wide strip along the border (i.e. within 7.5 m from the border line on each side of it) (Article 6).

Civil navigation is allowed on the border rivers and lakes, provided the vessels of each country stay on the appropriate side of the dividing line (Article 9); similar rules apply to fishing in these waters (Article 10). Each country's authorities will carry out appropriate measures to prevent grazing livestock from crossing into the other country and will endeavor to apprehend and return any livestock that wanders onto their territory from across the border (Article 17). Hunting using firearms is prohibited within 1000 m from the borderline; hunters are prohibited from crossing the border in pursuit of a wounded animal (Article 19).

Detained illegal border crossers are supposed to be normally returned to their country of origin within 7 days from their apprehension (Article 34).

Eastern section
A list of ports-of-entry on the eastern section is provided by China Association of Port-of-entry:

Western section
According to Russian topographic maps, the lowest mountain passes on the western section of the border are the Betsu-Kanas Pass (перевал Бетсу-Канас), elevation 2671.3 m and Kanas (перевал Канас), elevation 2650 m. No roads suitable for wheeled vehicles exist over these two passes, although a difficult dirt road approaches from the Russian side to within 10 km from the Kanas Pass. Until the Soviet authorities closed the border in 1936, Kazakh nomads would occasionally use these passes.

Proposals exist for the construction of a cross-border highway and the Altai gas pipeline from China to Russia, which would cross the western section of the Sino-Russian border.

Historical maps
Historical maps of the border from west to east in the International Map of the World, mid-20th century: