États-Unis dans la Première Guerre mondiale
Although war in Europe prompted Congress to vastly increase the appropriations for the Aviation Section in 1916, it nevertheless tabled a bill proposing an aviation department incorporating all aspects of military aviation. The declaration of war against Germany on April 6, 1917, putting the United States in World War I, came too quickly (less than eight months after its use in Mexico chasing Pancho Villa) to solve emerging engineering and production problems. The reorganization of the Aviation Section had been inadequate in resolving problems in training, leaving the United States totally unprepared to fight an air war in Europe. The Aviation Section consisted of 131 officers, 1087 enlisted men, and approximately 280 airplanes.