History World War, 1939-1945 Campaigns 1,407 Guerre mondiale, 1939-1945 593 Regimental histories 583 Histoire 510 Aerial operations, American 378 more ... Holocaust, Jewish (1939-1945) 343 Jews 333 Underground movements 301 Politics and government 287 Atrocities 227 History, Military 209 Foreign relations 203 Social aspects 203 Armed Forces 190 World War, 1914-1918 184 Secret service 174 Women 171 Social conditions 165 Prisoners of war 153 Soldiers 152 Naval operations 142 Naval operations, American 142 Aerial operations, British 137 Influence 132 Weltkrieg 130 Ethnic relations 125 Diplomatic history 120 National socialism 117 less ...