World War, 1939-1945 Foreign relations 5 Campaigns 2 Causes 2 Diplomatic history 2 Foreign economic relations 1 Foreign public opinion, American 1 Foreign public opinion, Japanese 1 History 1 Occupied territories 1 Pearl Harbor (Hawaii), Attack on, 1941 1 Politics and government 1 Regionalism 1 Relations 1 Sino-Japanese Conflict, 1931-1933 1 Sino-Japanese War, 1937-1945 1 Social aspects 1 Social life and customs 1 Sources 1