China was generally generous in resolving disputes with its southwest neighbors. According to academic Swaran Singh, China's generosity was likely motivated by the security concern of reducing foreign support for disgruntled groups within
China's southwest border. China negotiated bilaterally to resolve its borders with these conflicts. Ultimately, China obtained significantly less Central Asian territory than what it had originally claimed. On July 1, 1997, the People's Republic of China
resumed the exercise of sovereignty over Hong Kong.
Kazakhstan After the dissolution of the Soviet Union, Kazakhstan became an independent country, and around 2,420 square kilometers of land was disputed with China. A border treaty between the two nations was signed in Almaty on April 26, 1994, and ratified by the Kazakh president on June 15, 1995. China received around 22% of the total disputed territory, and Kazakhstan received the remaining 78%. Formal demarcation was hampered by opposition to the border treaty by the Kyrgyz opposition, centred on
Azimbek Beknazarov, as part of a wider movement against the ex-President
Askar Akayev culminating in the
Tulip Revolution. The border agreement was finalized in 2009, with China giving up part of the Khan Tengri Peak while Kyrgyzstan ceded the Uzengi-Kush, a mountainous area located south of the Issyk Kul region.
Laos Laos obtained a partial independence from
France in 1949, around the time when the People's Republic of China was established after defeating the nationalist government in the Chinese Civil War. The boundary then became one between two sovereign independent states. The border was re-surveyed and demarcated in April 1992.
Macau On December 3, 1966, the
12-3 incident occurred in
Macau. On April 25, 1974, the
Portuguese Army launched the
Carnation Revolution. The new Portuguese civilian government implemented a
decolonization policy and recognized that Macau was not a colony but Chinese territory. At that time, it also hoped to return the sovereignty of Macau immediately, but was rejected by the government of the People's Republic of China. It was not until February 8, 1979, that Portugal and the People's Republic of China officially exchanged the "Communiqué on the Establishment of Diplomatic Relations". Both sides jointly confirmed that Macau was Chinese territory, and the time and details of the return would be negotiated and resolved by the two governments at an appropriate time. On June 30, 1986, the two sides began negotiations on the return of Macau. On April 13, 1987, the two sides signed the
Sino-Portuguese Joint Declaration. On December 20, 1999, the People's Republic of China
resumed the exercise of sovereignty over Macau.
Mongolia The People's Republic of China established
diplomatic relations with
Mongolia on October 16, 1949, and both nations signed a border treaty in 1962. With the
Sino-Soviet split, Mongolia aligned itself with the Soviet Union and asked for the deployment of Soviet forces, leading to security concerns in China. As a result, bilateral ties remained tense until 1984, when a high-level Chinese delegation visited Mongolia and both nations began to survey and demarcate their borders. Mongolian General Secretary
Jambyn Batmönkh, during a meeting with President
Kim Il sung while on a
state visit to
Pyongyang in November 1986 states that "renewing the development of Sino-Mongolian relations is important for our two countries’ people's common interest". In 1986, a series of agreements to bolster trade and establish transport and air links was signed. During the 19th century the British, based in India, began
occupying Myanmar (then referred to as Burma), gradually incorporating it into
British India. Additionally in 1941, following Japan's
invasion of Burma, parts of Burma were ceded to Siam as the
Saharat Thai Doem territory, thereby giving China a common border with Thailand, however these areas were returned to Burma in 1946 following Japan's defeat. Discussions between Burma and China over the border began in 1954, with China keen to control the area more effectively as it was being used as
a base by
Kuomintang troops. In recent years several towns along the border, such as
Mong La,
Ruili and
Muse, have become centers of gambling, prostitution and drug smuggling.
Nepal Several treaties were negotiated between Nepal and Tibet (
Qing China) in the 18th and 19th centuries, however they were often vague or contradictory. After the founding of the People's Republic of China in 1949, the Chinese and Nepalese governments signed three border agreements in 1960, 1961 and 1963. A Joint Commission was created to define and demarcate the border. Nepali opposition claims Nepal and China have an ongoing border dispute over the territory along the Himalayan border. However, both of the current governments of China and Nepal deny the accusation.
North Korea China and North Korea share a 1,416 km long land border that corresponds almost entirely to the course of the
Yalu and
Tumen rivers. The two countries signed a
border treaty in 1962 to resolve their un-demarcated land border. China received 40% of the disputed crater lake on
Paektu Mountain (known as Changbai Mountain in China), while North Korea held the remaining area.
Pakistan A solution to the two countries' border dispute was negotiated in 1950s. The
Sino-Pakistan Agreement (also known as the Sino-Pakistan Frontier Agreement and Sino-Pak Boundary Agreement) is a 1963 document between the governments of
Pakistan and China establishing the border between those countries. It resulted in Pakistan ceding to China and China ceding over to Pakistan.
Russia In 1991, China and
USSR signed the
1991 Sino-Soviet Border Agreement, which 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 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 () western section of the binational border; the demarcation of this section was completed in 1998. The last unresolved territorial issue between the two countries was settled by the 2004 Complementary Agreement between the People's Republic of China and the Russian Federation 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 has been 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. However, in China Standard Map Edition 2023, Bolshoy Ussuriysky Island has been speculated by some journalists to be asserted as Chinese territory by China.
Tajikistan China had a longstanding territorial claim on about 28,430 square kilometers (10,977 square miles) of Tajik territory since 1884, which was taken from the then Qing dynasty by
unequal treaties. In 2011, as part of a boundary agreement, China officially relinquished its claim on 96% of the total disputed territory, while Tajikistan ceded around 4% – about 1,137 square km (439 square miles) – to China. However, this treaty is not recognized by the Republic of China (ROC) government based in Taipei, and they continue to claim the territory (among others) as reflected in official government maps. The sea border continues to be
disputed. == Analysis ==