History -- Politics and government -- 3 Foreign relations -- 2 Study and teaching 2 World War, 1939-1945 -- 2 Biological warfare -- 1 Campaigns -- 1 more ... Diplomatic relations 1 Economic conditions -- 1 Education and state 1 Education and state -- 1 Education sociology 1 Educational sociology -- 1 Exhibition. -- 1 Foreign economic relations -- 1 Foreign relations 1 Historiography -- 1 History 1 International relations 1 Japanese occupation, 1910-1945 1 Meiji Period, 1868-1912 1 Military relations -- 1 National security 1 National security -- 1 Nuclear warfare -- 1 Occupied territories -- 1 Prisoners and prisons, Japanese 1 Prisoners of war -- 1 Psychological aspects 1 Relations -- 1 less ...