What historical events are reflected in "Crossing the Yalu River"? What was the purpose of China's invasion?

Yes, according to historical records, we can restore a world. If, at that time, if we don't send troops to help North Korea and let the United States succeed, first of all, the Eastern Group will exist in name only! It seems that our country is not a thing Second, considering the national interests of our country, it is best for all the countries around us to be the Oriental Group, which is conducive to our own national construction! If North Korea was occupied by the United States at that time, we would have been passive, because they had an effective base and could attack us anytime and anywhere, and the new China had just been established, so we had to do everything. Once we want to use our strength to defend against such attacks, it is really unrealistic! As long as the United States didn't have a foothold at that time, its navy didn't do much! So! Whether it is public or private, in that case, we must help North Korea hold its ground! This is the most correct strategic thinking! Therefore, Grandpa Mao not only helped North Korea, but also helped Vietnam in our difficult situation! It is also both public and private! * * * The producer himself said that our cause is unprecedented, and we are all crossing the river by feeling the stones! Therefore, how to create a stable international environment and win precious time for our cause is the most urgent at that time! Otherwise, Grandpa Mao wouldn't be in a hurry for the Great Leap Forward! Grandpa Mao's ethnic policy at that time was really a failure! But! But left a precious wealth to future generations! I just, when I thought about the Cultural Revolution, I realized from the beginning that all the chaos could be weathered safely? I will have confidence in the people of our country! If I said it, it wouldn't be as messy as I thought! What's more, I also have an appendage symbol, that is, my ability is here. The point is that I didn't know how to say it, how to say it! However, I have been making progress, and those voices are always by my side. I firmly believe that they can't play me like this all their lives! So, I've been waiting, and I've been making progress anyway! It doesn't matter! What happened later proved it! I finally found a chance to express myself! In fact, standing at the age of 30, the biggest test for people is the test of mind! I have always really planned to sacrifice myself for the progress of the country! I admit it now!