World War, 1939-1945 Campaigns 334 History 242 Aerial operations, American 154 Prisoners of war 145 Prisoners and prisons, Japanese 141 Soldiers 126 more ... Regimental histories 119 Guerre mondiale, 1939-1945 85 Prisoners and prisons, German 65 Publications about Graduates 60 Publications by Graduates 60 Naval operations, American 57 Officers 39 Military campaigns 33 Campagnes et batailles 32 Armed Forces 31 Fighter pilots 31 Weltkrieg 31 Sailors 30 Underground movements 30 Medical care 27 Air pilots, Military 26 History, Military 26 Concentration camps 24 Generals 23 American 21 Aerial operations 20 Naval operations 20 Secret service 20 less ...