National characteristics, Japanese 4 Defenses 3 National Security 3 Civilization -- 2 Military policy 2 20th century -- 1 Civilization, Comparative 1 more ... Economic conditions -- 1 Foreign relations 1 Foreign relations -- 1 History -- 1 National security 1 Politics and government 1 Politics and government -- 1 Post-Cold War 1 Relations -- 1 Social conditions -- 1 Universities and colleges -- 1 less ...