What is history: it is the echo of the past to the future, the reflection of the future on the past. - Hugo
Historically, Vietnam was once a vassal state of China and has always been deeply influenced by Chinese culture. Vietnam is located in the south of our country, only adjacent to our country, the relations between the two countries have been very harmonious in the past, and our country has also vigorously helped Vietnam to restore peace, but in 1979, Vietnam constantly provoked our country, and after our country warned the other side to ignore it, our country ordered the PLA troops to carry out a counterattack against Vietnam out of the protection of its own residents. The battle lasted a month, and the Plakeet was finally victorious. In the war against Vietnam, this country gave the greatest help to China, warning the Soviet Union not to intervene, and this country is the United States.
In the last century, the Soviet Union and the United States broke out the Cold War, the two countries for their own camps, our country has always been very friendly with the Soviet Union, calling the Soviet Union a big brother, but the Soviet Union hopes that our country will give up some of the rights and interests of the northeast, China's bottom line is the territorial issue and internal affairs, was categorically rejected by our country, the Soviet Union was ashamed and angry, and our country is not anyone who can suppress it casually, so the relations between the two countries fell to a freezing point.
Because Sino-Soviet relations are bad, the Soviet Union hopes to support an agent in Asia again and help him balance Asia. At this time, Vietnam, which had just helped the United States defeat, was supported by the Soviet Union, and the Vietnamese side used the Soviet Union as a backstage, and Vietnam became more and more arrogant, and then there was a counterattack war against Vietnam.
They did not expect that as soon as the war broke out, they did not expect that China, which was divided up by the great powers at that time, was now very powerful, and at this point, they had effortlessly left no piece of Vietnam's armor. Vietnam, which the People's Liberation Army had beaten like a decay, panicked and asked the Soviet Union for help, which itself intended to help. There was a country that intervened to block Soviet aid to Vietnam, and that country was our old rival, the United States.
Therefore, when mountains and rivers meet, the enemy of the enemy is his friend. This surprised the Soviet Union, because the relations between us and the United States in the Previous War to Resist US Aggression and Aid Korea were very stiff. China's relations with the Soviet Union broke, but it established friendly relations with the United States. Throughout the 701s, the Cold War confrontation between the United States and the Soviet Union was on the defensive, and at the same time, because the United States was deeply mired in the quagmire of the Vietnam War, the more the people and money were injured, and the weaker the national strength, the United States threw an olive branch to China in order to win over our country.
At that time, the United States should be regarded as a major international giant, and his willingness to make friends with China also gave China an opportunity to develop itself. And we also need a favorable foreign aid at this time, so both sides are willing, and things are naturally going very smoothly. In the face of interests and threats, China quickly chose interests, and exchanges between various countries such as Nixon's visit to China have become more and more frequent. All this has also prepared China to become a world power.
So when China counterattacked against Vietnam, the United States warned the Soviet Union not to take advantage of the chaos to use troops against China, and under the strong pressure of the United States, the Soviet Union had to give up its assistance to Vietnam.