World War, 1939-1945 History 9,558 Campaigns 5,711 Guerre mondiale, 1939-1945 1,960 Foreign relations 1,702 Holocaust, Jewish (1939-1945) 1,696 Politics and government 1,585 more ... Jews 1,535 Regimental histories 1,467 Diplomatic history 1,080 Aerial operations, American 1,072 Underground movements 970 Atrocities 920 Naval operations 748 Secret service 743 Causes 721 Prisoners of war 711 Naval operations, American 688 Soldiers 655 History, Military 629 World War, 1914-1918 585 Prisoners and prisons, German 564 Concentration camps 560 Aerial operations 551 Rescue 551 Military campaigns 527 Women 522 Histoire 507 Social conditions 483 Armed Forces 475 less ...