1939-1945 20thcentury 477th 99th aerialmilitaryoperations aerialoperations africanamerican africanamericanairpilots africanamericanfighterpilots africanamericanparticipation africanamericanpilots africanamericans american americanaerialoperations campaigns history juvenileliterature juvenilenonfiction militaryparticipation nonfiction participation unitedstates unitedstatesarmyairforcesfightergroup westernfront worldwar