Politics and government -- 13 Congresses -- 10 Congresses 8 History -- 7 Foreign relations -- 5 Political parties -- 5 Ethnicity -- 4 more ... Minorities -- 4 National security -- 4 Nationalism -- 4 Citizenship -- 3 Ethnic relations 3 International cooperation -- 3 Political activity -- 3 Politics and government 3 Terrorism -- 3 Arms control -- 2 Civil rights -- 2 Coalition governments -- 2 Cold War 2 Defenses 2 Defenses -- 2 Democracy -- 2 Economic conditions -- 2 Emigration and immigration -- 2 Environmental policy -- 2 Government policy -- 2 Human rights -- 2 Naturalization -- 2 Nuclear arms control -- 2 less ...