Viet Nam is a country close to and bordering the south of China, with frequent bilateral trade. Because Vietnam has been invaded by France, the United States and other foreign countries many times in history, Vietnamese nationals have a kind of xenophobia. They transferred this sense of exclusion to China people who deal with the border. On the land bordering China, border people and people engaged in border trade are frequently harassed by Vietnamese, and their personal safety is seriously threatened. 1979, China was fed up and launched a counterattack in self-defense, which lasted off and on for several years. 1986 After the Spring Festival, when I returned to school in the summer vacation of my third year of college, I received a notice from the student union of our school, asking us to communicate with the China soldiers who fought back in self-defense in Lao Shan and Fake Mountain, Vietnam, and to express our condolences to the soldiers and commanders at the front. The student union will send each of us a form with a row of names and mailing addresses. Choose three people at random and correspond with them. I am familiar with the leaders of the student union in our school and accept it gladly. Soon, three letters were written and sent out, and the task was completed soon, which reflected the students' reverence for the cutest soldier in front of them. About a month has passed, and I have received replies one after another. I am very excited to read it. In the contents of the letter, I wrote about how to be responsible to the people, how to learn technical skills, and how to bravely kill the enemy. According to the recipient, I am not as good as the previous recipient. I clearly know that the tragic self-defense against Vietnam at that time was evident. Chengdu Military Region is one of the main participating military regions in the self-defense counterattack against Vietnam, and the wartime logistics mobilization work is still in place. Our classmates who were studying in Chengdu at that time were mobilized to join the team of connecting feelings and condolences. Finally, I would like to extend my sincere respect to the soldiers and the most lovely people who died for the country to defend national security and territorial integrity.