摘要:THE HISTORY OF co-operation between Airmen of the British and American air services in the First World War falls very broadly into three categories: training and combat operations, theory and doctrine, and production. As latecomers both to the war itself and to the organisation and operation of air forces on a large scale, the Americans were anxious to benefit from the hard-won lessons and experience of their British and French Allies. On entering the war, the United States had only 130 officers and some 1,000 enlisted men in its aviation service, together with 200 aircraft, not one of which could be deemed suitable for combat.1 By September of 1917, Gen John “Blackjack” Pershing was already planning an air service of 260 frontline squadrons by 30 June 1919.2 If the United States was to build an effective air arm of this size, it was obvious to American officers that they should seek to obtain the maximum benefit not only from their Allies’ firsthand experience of war, but also from their military organisations themselves. In addition, of course, some spirited Americans had entered the service of the Allies before the US declaration of war in April 1917. The most famous of these served with the Lafayette Escadrille of the French Air Service, but others, as we shall see, had made their way across the Canadian border and found their way into the British Royal Flying Corps (RFC).