Nonfiction History World War, 1939-1945 Campaigns Extraterrestrial beings History, Military Large type books Life on other planets Military planning Operation Overlord Research Unidentified flying objects Atomic bomb Atomic bomb victims Bombe atomique Civil defense Cold War Crisis management in government Defenses Diplomatic relations Emergency management Foreign economic relations Foreign relations Government policy Guerre mondiale, 1939-1945 Histoire International economic relations Nuclear warfare Planification militaire Political corruption