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Former emperor of Vietnam Bao Dai leaves the Elysee palace, in February 1948, in Paris, after a meeting. In 1948, French authorities began negotiations with the former Vietnamese emperor Bao Dai to lead an "autonomous" government within the French Union of nations, the State of Vietnam. On 05 June 1948, Bao Dai and Emile Bollaert signed the second Ha Long Bay Agreement in which France solemnly recognizes the independence of Vietnam. However, the French government retains control over foreign relations and the Army and defers transference of other government function to future negotiations. This fact is an episode of the first Indochina war, or Franco-Vietnamese war. (Photo credit should read OFF/AFP/Getty Images)

Former emperor of Vietnam Bao Dai leaves the Elysee palace, in February 1948, in Paris, after a meeting. In 1948, French authorities began negotiations with the former Vietnamese emperor Bao Dai to lead an "autonomous" government within the French Union of nations, the State of Vietnam. On 05 June 1948, Bao Dai and Emile Bollaert signed the second Ha Long Bay Agreement in which France solemnly recognizes the independence of Vietnam. However, the French government retains control over foreign relations and the Army and defers transference of other government function to future negotiations. This fact is an episode of the first Indochina war, or Franco-Vietnamese war. (Photo credit should read OFF/AFP/Getty Images)