Vietnam and China are neighboring countries whose mutual relations go back centuries and go back more than two thousand years. Geopolitics and ideology have always influenced the nature of Vietnam-China relations. In ancient times and the Middle Ages, good neighborliness was replaced by wars, there was a period of almost a thousand years of forced entry of Vietnam into the Chinese Empire. Once free, Vietnam remained a nominal vassal and tributary of feudal China until the end of the 19th century. Confucianism, which had dominated Vietnam for centuries, came from China, and Buddhism also penetrated from here. Confucianism has led to the cultural and ideological affinity and commonality of many social institutions in Vietnam and China. It was in Confucian ideology that the form of interstate relations that linked Vietnam with China and was based on Vietnam's recognition of China's cultural and political superiority also found its justification. Since the twentieth century, Marxism has become widespread in both countries, under the banner of which the Communist Parties of China and Vietnam came to power in their respective countries. Marxism was the official ideology in China and Vietnam, when the neighboring countries experienced periods of" friendship and cooperation", called each other"comrades and brothers". China was on the side of Vietnam (DRV) during the War of Resistance against France (1946-1954) and the American aggression (1964-1973), providing it with great gratuitous assistance. Without the support of the PRC and the USSR, victory in the liberation war and the subsequent reunification of the country would have been very problematic. Nevertheless, being socialist countries, professing a Marxist ideology, Vietnam and China in the late 70s and early 80s of the XX century found themselves in a state of confrontation, frequent border conflicts, and even a short war in the spring of 1979. At that time, China and Vietnam clashed as two geopolitical forces in the ... Read more