World War, 1939-1945 History 6,436 Campaigns 4,087 Guerre mondiale, 1939-1945 2,002 Regimental histories 1,219 Foreign relations 1,018 Politics and government 909 more ... Holocaust, Jewish (1939-1945) 900 Aerial operations, American 840 Jews 837 Diplomatic history 659 Underground movements 610 Naval operations 565 Histoire 528 Atrocities 519 Prisoners of war 509 Naval operations, American 494 Secret service 480 History, Military 452 Soldiers 411 Causes 404 Aerial operations 401 World War, 1914-1918 396 Weltkrieg 370 Prisoners and prisons, Japanese 361 Prisoners and prisons, German 356 Military campaigns 349 Armed Forces 338 Women 329 Submarine 317 less ...