when did the us first get involved in vietnam
USA involved in Vietnam in five phases: 1. 1941-1945 When Japan occupied Vietnam, USA aided the Vietminh to fight the Japanese and the Vichy France government in Vietnam until the end of the WWII 2. 1945-1954 When Vietminh fought the colonial French, USA aided French with money, military supplies and air missions.SA involved in Vietnam in five phases: 1. 1941-1945 When Japan occupied Vietnam, USA aided the Vietminh to fight the Japanese and the Vichy France government in Vietnam until the end of the WWII 2. 1945-1954 When Vietminh fought the colonial French, USA aided French with money, military supplies and air missions.