On this day 80 years ago, on December 19, 1945 (November 15, 1945 in the lunar calendar), the War of Resistance against France and National Salvation broke out in full swing in Vietnam, Laos and Cambodia. After Japan surrendered in August 1945, the Vietnamese people launched the August Revolution and declared Vietnam's independence and the establishment of the Democratic Republic of Vietnam on September 2. In October Laos established the Ishala Provisional Government. On September 23, 1945, France occupied Saigon with the support of the United Kingdom and began to restore the colonial regime. In October, the French army occupied Cambodia and invaded Laos at the end of the year. The people of the three countries rose up to protect their national independence. In November 1945, the Communist Party of Indochina issued a directive to "build a country in the War of Resistance", proposing the urgent task of "consolidating power and opposing the aggression of the French colonists", and convened a National Assembly to establish a "National Guard Army". Trying to buy time and develop anti-French forces, Vietnam and France signed a preliminary agreement between France and Vietnam and a temporary agreement between France and Vietnam. After the withdrawal of the Chinese Nationalist army from March 7 to 18, the French army entered Haiphong and Hanoi. On December 19, 1946, the French colonists tore up all the agreements and launched a general offensive in Hanoi, and the Vietnam Anti-French National Salvation War broke out. In the early days of the war, the French army launched a full-scale offensive in order to "make a quick decision". After the defense of Hanoi and other cities, the Vietnamese army retreated into mountainous areas and rural areas to carry out guerrilla warfare, and at the same time carried out "scorched earth war of resistance" and disrupted transportation. In October 1947, the French army occupied the big cities, but lost more than 40,000 people, and its "quick decision" plan went bankrupt. In 1948, the Vietnamese military and civilians partially counterattacked and won the Vietnam Campaign. The French army changed its strategy and implemented the "war to build up the war" strategy, with the purpose of destroying the Vietnamese reserve forces and attacking key regions. In October 1949, the People's Republic of China was established, which created very favorable international conditions for the Indochinese people's war of resistance. In September 1950, with the strong support of China, the Vietnamese People's Army won the border battle, annihilated nearly 10,000 enemies, consolidated and expanded the North Vietnam Liberated Area, won the initiative in the war, and gave the Anti-Japanese War a stable rear. At the same time, the anti-French war between the Laotian and Cambodian people was widely carried out. The Free National Unity War of Su State led the Lao people in the anti-French struggle and established the liberated areas in Sang Nu, Seng Khouang, and Phong Sa Li. In 1950, the Anti-Japanese War Government was established with Prince Suphat Nouvong as Prime Minister. The Khmer Ishak (Khmer Free National United Front) led the anti-French armed uprising from 1946. In 1950, the National Liberation Committee was established. The guerrilla areas accounted for one-third of the country. In 1951, the Vietnamese Party implemented democratic reforms in the liberated areas. In December 1953, Vietnam passed the land reform law and gradually carried out land reform in the liberated areas, promoting the Anti-Japanese War. In early 1953, Cambodia's Prince Sihanouk led the "Yujia Reform Movement for Independence" to oppose French colonial rule. On November 9, France was forced to recognize Cambodia's independence. In the same month, the French army established a stronghold group in Dien Bien Phu, a key military town in the northwest, according to the "Naval Plan", as a base for attacking the liberated areas. From March 13 to May 7, 1954, the Vietnamese People's Army launched the Battle of Dien Bien Phu, which wiped out more than 16,000 elite French troops, captured the French commander De Castelli, smashed the Naval Plan, and achieved a decisive victory in the Anti-French War. On July 21, 1954, France was forced to sign the Geneva Agreement on the Armistice in Indochina: to ensure respect for the sovereignty, independence, unity and territorial integrity of Vietnam, Laos and Cambodia, and not to interfere in their internal affairs; to prohibit any foreign country from establishing military bases on the territory of the three countries; to draw a temporary demarcation line between the Vietnamese and French forces south of the 17th parallel and slightly north of Highway 9; to draw Sangnu and Pongsari as the assembly area of the troops of the Free National United Front of China; to hold free elections in each country to achieve unity on a democratic basis. On August 31, the Indochina armistice, peace was restored in the Indochina region, and the people of the three countries won the war of resistance to France and national salvation.