Politics and government -- 30 Nationalism -- 26 National security -- 18 History -- 17 History 10 Politics and government 10 Ethnic relations 6 more ... World politics -- 6 Foreign relations -- 5 National characteristics, American 4 National characteristics, Japanese 4 Causes 3 Civilization 3 Congresses 3 Congresses -- 3 Economic conditions 3 Foreign relations 3 Peace 3 Yugoslav War, 1991 -- 3 African American legislators 2 Arab-Israeli conflict 2 Armed Forces -- 2 Autonomy and independence movements 2 Economic conditions -- 2 Legislators -- 2 Middle East 2 National liberation movements -- 2 National state 2 Nonalignment movement 2 Officials and employees 2 less ...