World War, 1939-1945 561 History 279 Campaigns 83 Foreign relations 83 Atomic bomb 49 Prisoners of war 49 Prisoners and prisons, Japanese 39 more ... Atrocities 34 Social aspects 33 Politics and government 26 Sino-Japanese War, 1937-1945 26 Diplomatic history 24 Causes 22 Military policy 21 Aerial operations, American 20 Influence 20 History, Military 18 Social conditions 18 Women 18 Aerial operations, Japanese 16 Historiography 16 Moral and ethical aspects 16 Propaganda 16 War crime trials 16 Comfort women 14 Collective memory 13 Naval operations, Japanese 13 War and society 13 Atomic bomb victims 12 Bombing, Aerial 12 less ...