1979 The Sino-Vietnamese War refers to a large-scale military conflict that broke out on the Sino-Vietnamese border from 17 February to 16 March. It was a war between the Vietnamese people and the Socialist Republic of Vietnam. There are many reasons for this war, mainly in the following aspects:

1. When China and the Soviet Union became enemies, the political positions and security interests of China and Vietnam diverged. Viet Nam leans towards the Soviet Union, while China is close to the United States.

2. China and Viet Nam have territorial disputes over islands and border areas in the South China Sea, and there have been many armed conflicts between them.

3. Vietnam invaded Cambodia, overthrew the Khmer Rouge regime pro-China, and threatened China's interests and influence in Southeast Asia.

4. The persecution of overseas Chinese in China by Vietnam aroused the indignation of the Vietnamese government and people.

1979, 17 In February, the China People's Liberation Army launched a self-defense counterattack against Vietnam to punish Vietnam's aggression and break the encirclement of the Soviet Union in Southeast Asia, showing China's military strength and political will. China's army captured more than 20 important cities, counties and towns in northern Vietnam in a short time, which caused great losses to Vietnam. However, due to the lack of modern equipment and logistical support of the China army and the stubborn resistance of the Vietnamese People's Army and militia, the attack encountered great difficulties. 1979 On March 16, China announced that it had achieved the goal of war and began to withdraw its troops from Vietnam. Both sides claimed to have won the war.

However, this is only the Sino-Vietnamese war in a narrow sense. The Sino-Vietnamese War in a broad sense refers to the Sino-Vietnamese border military conflict from 1979 to 1989. The conflict was triggered by the failure of the two sides to reach an agreement on border demarcation, repatriation of prisoners of war, border security and other issues. Small-scale exchanges of fire and friction between the two sides in the border areas have caused thousands of casualties. The conflict was basically over until 1989, and the two sides gradually resumed peaceful relations.

Therefore, the Sino-Vietnamese War of 1979 lasted for several years without a definite answer. According to the narrow definition, the war only lasted for more than a month; According to the broad definition, this war has lasted for nearly ten years. In any case, this war has brought great losses and influences to both China and Vietnam, leaving a deep imprint on history.