Foreign relations -- 13 Relations -- 8 Foreign economic relations -- 5 Commercial policy 2 History -- 2 National security -- 2 Biological warfare -- 1 more ... Case studies -- 1 China 1 Civilization -- 1 Commerce 1 Commerce -- 1 Economic policy -- 1 Foreign public opinion, American 1 Foreign public opinion, Japanese 1 Free trade -- 1 History 1 Industry and state -- 1 International economic relations 1 Korean reunification question -- 1 Mercantile system -- 1 Military relations -- 1 Politics and government 1 Politics and government -- 1 Protectionism -- 1 Public opinion -- 1 Science and state -- 1 Sino-Japanese Conflict, 1937-1945 -- 1 Technological innovations -- 1 less ...