The August Revolution (Vietnamese: Cách-mạng tháng Tám, (Vietnamese pronunciation: [kǎk mâˀŋ t̺ʰǎŋ tǎːm])), also known as the August General Uprising (Vietnamese: Tổng khởi-nghĩa giành chính-quyền tháng Tám, lit. 'the Total uprising to seize power in August', Vietnamese pronunciation: [tôŋ͡m xɤ̂j ŋɥiə̌ˀ ʑàjŋ cǐjŋ kwiə̀n t̺ʰǎŋ tǎːm]), was a revolution led by the Việt Minh against the Empire of Vietnam from 13 to 28 August 1945. The Empire of Vietnam was led by the Nguyễn dynasty and was backed by Japan as a member of the Greater East Asia Co-Prosperity Sphere. The Việt Minh, a political league de facto led by the Communist Party, was created in 1941 and designed to appeal to a wider population than the communists could command. The revolution had the participation of factions that did not follow the Việt Minh.
The Japanese army in Vietnam generally did nothing to prevent the revolution as they de facto surrendered to the Allies in World War II. There was a sporadic clash in Thái Nguyên with inconclusiveness. Facing a strong movement of the Viet Minh, the Empire of Vietnam refused Japan's request for help because its prime minister and emperor did not want foreign army to suppress the Việt Minh when they supported national unity and did not discover communist nature of this organization, leading to the revolution happening peacefully.