I think no one then believed that our air-force could check the assault.
Uppermost in my own mind, and in everyone's mind, I think, was the question of air-force.
The air-force of the United States had been ordered in; and they were coming, coming—to an inevitable death!
1917, from air (n.1) + force (n.); first attested with creation of the Royal Air Force. There was no United States Air Force until after World War II. The Air Corps was an arm of the U.S. Army. In 1942, the War Department reorganized it and renamed it Army Air Forces. The National Security Act of 1947 created the Department of the Air Force, headed by a Secretary of the Air Force, and the U.S.A.F.