History 149 World War, 1939-1945 135 Biography 65 Campaigns 53 Politics and government 45 Germany 32 Heads of state 23 National socialism 22 Secret service 15 World war, 1939-1945 13 Armed Forces 12 Juvenile literature 12 Airplanes, Military 11 Foreign relations 11 Generals 11 World War, 1914-1918 11 Nazis 10 Regimental histories 9 World War 9 Aerial operations 8 Antisemitism 8 Jews 8 Personal narratives 8 Tank warfare 8 Equipment and supplies 7 History, Military 7 Holocaust, Jewish (1939-1945) 7 Military intelligence 7 Naval operations 6 Soldiers 6