World War, 1939-1945 History 31 Campaigns 17 Foreign relations 8 Japan 8 Atrocities 6 Biography 6 Military intelligence 5 Naval operations, Japanese 5 Atomic bomb 4 Juvenile literature 4 Personal narratives, Japanese 4 Aerial operations, Japanese 3 Causes 3 History, Military 3 Naval operations 3 Relations 3 World war, 1939-1945 3 Aerial operations 2 Allied occupation 2 Diplomatic history 2 Fighter planes 2 Kaigun 2 Military policy 2 Oral history 2 Pearl Harbor (Hawaii), Attack on, 1941 2 Personal narratives, American 2 Philosophy 2 Psychological aspects 2 Sino-Japanese Conflict, 1937-1945 2