World War, 1939-1945 History 5,084 Campaigns 3,928 Guerre mondiale, 1939-1945 1,470 Regimental histories 1,162 Foreign relations 791 Holocaust, Jewish (1939-1945) 783 more ... Politics and government 754 Aerial operations, American 730 Jews 724 Diplomatic history 578 Underground movements 544 Naval operations 487 Prisoners of war 455 Atrocities 440 Secret service 420 Naval operations, American 407 History, Military 392 Causes 360 Histoire 352 Prisoners and prisons, Japanese 337 Military campaigns 335 Prisoners and prisons, German 330 Soldiers 328 Weltkrieg 297 Submarine 291 Aerial operations 286 Campagnes et batailles 269 Armed Forces 257 Rescue 257 less ...