Relations -- 7 Foreign relations -- 6 Foreign economic relations -- 3 Military relations -- 2 National security -- 2 Biological warfare -- 1 Case studies -- 1 more ... Commerce -- 1 Commercial policy 1 Cross cultural studies 1 Environmental psychology -- 1 Foreign public opinion, American 1 Foreign public opinion, Japanese 1 Foreign relations 1 Free trade -- 1 History 1 History -- 1 Korean reunification question -- 1 Politics and government 1 Public opinion -- 1 Sino-Japanese Conflict, 1937-1945 -- 1 less ...