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
17th Aero Squadron the squadron was ordered to Toronto, Ontario, Canada for training under the British Royal Flying Corps (RFC). The previous month, a reciprocal agreement was made between the British and American governments under which the British would organize and train at the RFC's camps near Toronto the pilots and mechanics of ten Aero squadrons for overseas service. The 17th Aero Squadron was the first group to arrive under that agreement. The squadron arrived on 4 August at the recruit's depot at Leaside, Ontario. Here the men underwent three week's British drill and discipline. Then, the squadron was divided into detachments and