On this day, 71 years ago, on March 13, 1954 (February 9, 1954 in the lunar calendar), the Vietnamese army and the French army fought a decisive battle in Dien Bien Phu. The French position became smaller and smaller, and tanks became scrap metal. On March 13, 1954, the Vietnamese army and the French army fought a decisive battle in Dien Bien Phu. The Battle of Dien Bien Phu was the most critical battle in the Vietnam War against France from 1946 to 1954. Dien Bien Phu is a military location that controls northwest Vietnam and northern Laos. On November 20, 1953, three French paratroopers of more than 5000 people under the command of General Nawar captured Dien Bien Phu in a sudden attack, and later increased the number of troops to about 20,000 people. The French army attempted to use ground firepower and air superiority to lure the main force of the Vietnamese army to Dien Bien Phu and annihilate it. In mid-January 1954, the Vietnamese army's four infantry divisions and one industrial artillery division, with about 35000 people, formed a siege to the French army. On March 13, the Vietnamese army launched a fierce attack on the French troops stationed in Dien Bien Phu. On May 7, the last counterattack organized by Brigadier General Castries, commander of the French garrison, failed. After 55 days and nights of fierce fighting, the Vietnamese army completely liberated Dien Bien Phu. This battle wiped out more than 16000 French troops and shot down and destroyed 62 aircraft. The victory of the Battle of Dien Bien Phu captured the last fortress of the French army in northern Vietnam, completely shattered the military plan of the French commander-in-chief in Vietnam, and liberated the northern half of Vietnam. The worst scene of the fierce fighting occurred in early May, when the French army was forced to abandon its positions inch by inch at the Gate and Clodina strongholds. The fierce hand-to-hand combat between the two sides was like returning to barbaric times. One Vietnam soldier fell, another soldier rushed forward with fanatical feelings of dying in the line of duty, and the French defensive circle shrank smaller and smaller. The last two days of fighting were mainly concentrated on the main support points of Eliana's stronghold. On the morning of May 7, another group of Vietnam soldiers attacked, and the last stronghold finally collapsed. That afternoon, the French line of defense in Dien Bien Phu began to crumble, with only sporadic fighting in isolated positions. There is no doubt that Vietnam won the Siege of Dien Bien Phu because of the effective command of Vietnam commander Vo Nguyen Gae. Indeed, Wu Yuanjia had a large army, basically composed of a single ethnic group, willing to sacrifice their lives for freedom. However, his passion and spirit, as well as his fast-changing tactical talents, inspired his troops to show an incredible ability to fight continuously and fight spirit. Wu Yuanjia paid a very high price for victory. It is estimated that the Vietnamese Union army suffered as many as 23,000 casualties during the siege, including 8000 deaths. The Siege of Dien Bien Phu was not the end of the first Vietnam War, because the war lasted for three months later. On July 23, delegates to the Geneva meeting, including representatives of the Vietnamese Union government, agreed to a ceasefire. As a result, the Vietnam-Minh gained the area north of the 16th parallel, and Laos, Cambodia and South Vietnam also gained independence. Indochina entered a period of relative peace and happiness. But soon, this peace and happiness were once again destroyed. Vietnam General Vo Nguyen Gia