During World War II, the US Army Air Forces (AAF) trained over 21,000 aircrew members from 29 Allied countries. The two largest programs, 79 percent of those trained, were for Britain and France. The Royal Air Force (RAF), fully engaged against the German Air Force by December 1940, was not able to train new aircrews. The British government asked the United States to train new pilots until it could get its own flight training program underway. Lieutenant...