Military operations, Aerial World War, 1939-1945 90 Guerre mondiale, 1939-1945 69 HISTORY 55 American 40 Aerial operations, American 39 Military 38 History 35 World War II 35 Military campaigns 29 Campaigns 28 Campagnes et batailles 24 Aerial operations, British 22 British 22 Opérations aériennes britanniques 22 BIOGRAPHY & AUTOBIOGRAPHY 18 Western 18 Historical 17 Aerial operations 13 Armed Forces 13 Opérations aériennes 13 Histoire 11 Aerial operations, German 10 German 10 Fighter pilots 9 Histoire des unités 9 Regimental histories 9 Weltkrieg 9 Pilotes de chasse 8 Aerial operations, Japanese 7