section_path: Government and politics/Foreign relations/China and Russia
section_name: China and Russia
paragraph_text: China and Russia
  
  Historically, Korea had close relations with the dynasties in China, and some Korean kingdoms were members of the Imperial Chinese tributary system. The Korean kingdoms also ruled over some Chinese kingdoms including the Khitan people and the Manchurians before the Qing dynasty and received tributes from them. In modern times, before the formation of South Korea, Korean independence fighters worked with Chinese soldiers during the Japanese occupation. However, after World War II, the People's Republic of China embraced Maoism while South Korea sought close relations with the United States. The PRC assisted North Korea with manpower and supplies during the Korean War, and in its aftermath the diplomatic relationship between South Korea and the PRC almost completely ceased. Relations thawed gradually, and South Korea and the PRC re-established formal diplomatic relations on August 24, 1992. The two countries sought to improve bilateral relations and lifted the forty-year-old trade embargo, and South Korean–Chinese relations have improved steadily since 1992. The Republic of Korea broke off official relations with the Republic of China (Taiwan) upon gaining official relations with the People's Republic of China, which does not recognize Taiwan's sovereignty. China has become South Korea's largest trading partner by far, sending 26% of South Korean exports in 2016 worth $124 billion, as well as an additional $32 billion worth of exports to Hong Kong. South Korea is also China's fourth largest trading partner, with $93 billion of Chinese imports in 2016.
  
  Following the Korean War, the Soviet Union's relation with North Korea resulted in little contact until the dissolution of the Soviet Union. Since the 1990s, there has been greater trade and cooperation between the two nations.