China–United States relations

One of the earliest major interactions between the United States and China was the 1845 Treaty of Wangxia, which laid the foundation for trade between the two countries. While American businesses anticipated a vast market in China, trade grew gradually. In 1900, Washington joined the Empire of Japan and other powers of Europe in sending troops to suppress the xenophobic Boxer Rebellion, later promoting the Open Door Policy to advocate for equal trade opportunities and discourage territorial divisions in China. Despite hopes that American financial influence would expand, efforts during the Taft presidency to secure US investment in Chinese railways were unsuccessful. President Franklin D. Roosevelt supported China during the Second Sino-Japanese War, aligning with the Republic of China (ROC) government, which had formed a temporary alliance with the Chinese Communist Party (CCP) to fight the Japanese. Following Japan's defeat, the Chinese Civil War resumed, and US diplomatic efforts to mediate between the Nationalists and Communists ultimately failed. The Communist forces prevailed, leading to the establishment of the People's Republic of China (PRC) in 1949, while the Nationalist government retreated to Taiwan.
Relations between the US and the new Chinese government quickly soured, culminating in direct conflict during the Korean War. The US-led United Nations intervention was met with Chinese military involvement, as Beijing sent millions of Chinese fighters to prevent a US-aligned presence on its border. For decades, the United States did not formally recognize the PRC, instead maintaining diplomatic relations with the ROC based in Taiwan, and as such blocked the PRC's entry into the United Nations. However, shifting geopolitical dynamics, including the Sino-Soviet split, the winding down of the Vietnam War, as well as of the Cultural Revolution, paved the way for US President Richard Nixon's 1972 visit to China, ultimately marking a sea change in US–China relations. On 1 January 1979, the US formally established diplomatic relations with the PRC and recognized it as the sole legitimate government of China, while maintaining unofficial ties with Taiwan within the framework of the Taiwan Relations Act, an issue that remains a major point of contention between the two countries to the present day.
Every US president since Nixon has toured China during their term in office, with the exception of Jimmy Carter and Joe Biden. The Obama administration signed a record number of bilateral agreements with China, particularly regarding climate change, though its broader strategy of rebalancing towards Asia created diplomatic friction. The advent of the Xi's general secretaryship would prefigure a sharp downturn in these relations, which was then further entrenched upon the election of President Donald Trump, who had promised an assertive stance towards China as a part of his campaign, which began to be implemented upon his taking office. Issues included China's militarization of the South China Sea, alleged manipulation of the Chinese currency, and Chinese espionage in the United States. The Trump administration would label China a "strategic competitor" in 2017. In January 2018, Trump launched a trade war with China, while also restricting American companies from selling equipment to various Chinese companies linked to human rights abuses in Xinjiang, among which included Chinese technology conglomerates Huawei and ZTE. The US revoked preferential treatment towards Hong Kong after the Beijing's enactment of a broad-reaching national security law in the city, increased visa restrictions on Chinese students and researchers, and strengthened relations with Taiwan. In response, China adopted "wolf warrior diplomacy", countering US criticisms of human rights abuses. By early 2018, various geopolitical observers had begun to speak of a new Cold War between the two powers. On the last day of the Trump administration in January 2021, the US officially classified the Chinese government's treatment of the Uyghurs in Xinjiang as a genocide.
Following the election of Joe Biden in the 2020 United States presidential election, tensions between the two countries remained high. Biden identified strategic competition with China as a top priority in his foreign policy. His administration imposed large-scale restrictions on the sale of semiconductor technology to China, boosted regional alliances against China, and expanded support for Taiwan. However, the Biden administration also emphasized that the US sought "competition, not conflict", with Biden stating in late 2022 that "there needs to not be a new Cold War". Despite efforts at diplomatic engagement, US-China trade and political relations have reached their lowest point in years, largely due to disagreements over technology and China's military growth and human rights record. Provided by Wikipedia
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