Quảng Bình Province added phủ Quảng Trạch. Under French colony (French Indochina, Quảng Bình was situated in Annam of French Indochina and Đồng Hới airbase in Quảng Bình was used by the French to attack the Việt Minh in north-central Vietnam and the Laotian Pathet army in north and south Laos. In 1954, the Geneva Accord was signed by France, Vietnam, and other parties involved. According to which, Vietnam was to be temporarily divided into 2 parts, with the 17th parallel as the boundary. North Vietnam was under the control of the Communist party while the South was an anti-communist and French collaborators
War in Vietnam (1954–1959) a desire to maintain French influence. France's painful withdrawal may have led to its lack of cooperation in European defense arrangements that included the United States. France rejected European Defense Community on August 30, 1954, possibly to thank the Soviets for help at Geneva. But it is certain that many French were persuaded that the U.S. and the UK furnished inadequate support to France during the latter phases of the war, and at the Conference. And it is equally certain that American policy in the aftermath of Geneva widely alienated affection for the U.S. in France, and created that lack