Campaigns History World War, 1939-1945 56 World War, 1914-1918 13 Atrocities 5 Foreign relations 4 Politics and government 4 Social aspects 4 Aerial operations, American 3 Armed Forces 3 History, Military 3 Stalingrad, Battle of, 1942-1943 3 Berlin, Battle of, Berlin, Germany, 1945 2 Economic aspects 2 Generals 2 Historiography 2 Influence 2 Iraq War, 2003-2011 2 Military art and science 2 Territorial expansion 2 War and society 2 World War 2 Aerial operations 1 Aerial operations, British 1 Air power 1 Ambulance drivers 1 Anti-Nazi movement 1 Atomic bomb 1 B-29 (Bomber) 1 Biography 1