1914-1918 1933 1939-1945 1945 20thcentury 20thcenturyamericanhistory administrativeagencies aerialoperations afghanistan aftermath airplanes airpower airwarfare armedforces armedforcesnorthatlantictreatyorganization armedforceswarsawtreatyorganization aviation axis campaigns china easternfront europe europeantheater foreignarmedforces formersovietunion france french general germa germanhistory history individualbattles informationnetworks informationscience informationtechnology japan japanesehistory maintenanceandrepair marix membership military militaryaspects militaryaviation militaryplanning militarypolicy militaryrelations miscellaneous pacifictheater pictorial pictorialworks reference reorganization research russi russia sovietmilitaryhistory sovietunion specificaircraft stabilityoperations transportationreference unitedstates unitedstatesmilitaryaviation vietnamwar weaponssystems worldwar worldwarii