National security -- Foreign relations -- 9 Foreign relations 4 Relations -- 4 History -- 2 Military policy 2 China 1 more ... Congresses 1 Congresses -- 1 Diplomatic relations 1 Economic conditions -- 1 Energy security 1 Human ecology -- 1 Internal security -- 1 Japan 1 Law and legislation -- 1 Military relations -- 1 National security 1 Politics and government -- 1 Rela 1 less ...