War has never been just a matter for individual countries, from ancient times to the present, no matter which country, before launching the war, it will definitely find a good alliance organization or country for itself, and the alliance can help itself on the battlefield, and if necessary, it can also play the role of cannon fodder!
In the Sino-Vietnamese War that took place in the late 1970s, China's enemies were not only Vietnam, but also Mongolia, which was also a neighboring country, also intervened!
Speaking of Mongolia, I think most people will think of a word "Yuan Dynasty", yes, the predecessor of today's Mongolia is the Mongol ethnic group that was ruled by Genghis Khan, led by Kublai Khan and once occupied the entire land of China.
Since the Northern Expedition of Ming Taizu Zhu Yuanzhang captured Dadu in 1368, the Mongols withdrew from the Central Plains to their ancestral lands and stuck to the northern steppes. During the Ming Dynasty, the Mongols invaded the borders many times, but it was not until the end of the 17th century, when the Mongols were included in the qing dynasty's rule, that the Mongols truly belonged to the Chinese nation.
Later, the Qing Dynasty was troubled internally and externally, the Mongols took the opportunity to break away from the Qing Dynasty and declare independence, coupled with the rise of the Soviet Union in the 1920s and 1930s, Mongolia, as a neighboring country, did not hesitate to lean towards the Soviet Union, learn the various cultural technologies of the Soviet Union, and take the Lead of the Soviet Union!
In the 1960s, the Soviet Union unilaterally tore up various contracts with China, withdrew experts, and stopped supplying necessary materials, which paralyzed the operation of China's economy, and China and the Soviet Union began to fight!
Since the Soviet Union believed that China could not be controlled by it, it urgently needed to raise another spokesperson in Asia, and Vietnam, Mongolia, India, Laos, Afghanistan and other countries entered the Soviet plan!
Shortly after the end of the decade of social unrest, the domestic society has not yet recovered, and Vietnam and other countries have seized the opportunity to launch a war on the Chinese border at the behest of the Soviet Union, which is the famous "self-defense counterattack war against Vietnam" in modern history!
The Chinese side is a modern multi-service army of more than 200,000 people with heavy weapons led by Xu Shiyou, Yang Dezhi and others, while the Vietnamese side is mainly a jungle army of nearly 100,000 people led by Wu Yuanjia, Li Sun and others, and the two sides are fighting on the Chinese border.
The war lasted for 28 days, and the Chinese army occupied nearly 30 cities in Vietnam and captured a large number of Vietnamese soldiers, but the result was that "China and Vietnam declared victory each"!
During the Sino-Vietnamese War, several other small countries that defected to the Soviet Union also frequently created incidents to support vietnam, with Mongolia as a typical representative.
During the Vietnam War, Mongolia frequently carried out military activities in northern China, forcing our army to separate its troops and garrison it in the north for confrontation. With the end of the Vietnam War, Mongolia's activities stopped, and Mongolia's behavior was really not good!
Fortunately, New China has gradually broken through the barrier to become a force that no one in the world can ignore in the world today, and in the near future, China will be able to reproduce the glory of Chinese history!