context: Coexistence with the Japanese military and the French Indochina government lasted until March 1945, at the end of the Pacific War. As Vietmin's attack continued and the Duku government planned to face Japan, in March 1945 , France's Vichy regime collapsed, and Japan began to overthrow the anti-French regime to overthrow the French regime. A coup d'etat detained both French troops and officials. In other words, the Japanese troops carried out the patriot operation to subdue the French troops and declare independence from France. Japan tried to establish the banner of the Greater East Asia Co-Prosperity Sphere, and to independence Vietnam from the government at all times to make it his puppet government, and Emperor Bao Dai cooperated with the Japanese forces hostile to France. Accordingly, in March 1945, under the influence of Japan, supported by Japan, the Vietnamese empire, the nominal puppet government, was established, and Bao Dai took the seat of the Emperor. Among the Japanese soldiers of the time, attempts were made to establish the emperor of the Vietnamese Empire, who had been exiled to Japan, but the Southern Army and the 38th Army were conducting military administration as a policy of non-interference with the Vietnamese new regime. Bao Dai decided to take over the position of the first enemy of independent Vietnam because he decided to exclude the pro-Japanese regime. He repealed the Treaty of 1883, which left Annam and Tonking as French sanctuaries. At this time, severe famine occurred due to policies that forced Japan to harvest rice crops and produce industrial crops, floods, and damage to embankments, resulting in 2 million deaths in 10 million people in northern Vietnam. [10]: 201945 Japan surrendered on August 15, and the Vietnamese Empire collapsed in August 1945.
question: When did Vietnam become independent from France?
answers.text: March 1945