Violence Terrorism 4 Civil war 2 Foreign relations -- 2 Genocide 2 Nationalism 2 Political violence 2 more ... War 2 World politics -- 2 Community policing 1 Conflict management 1 Conflict resolution 1 Criminal 1 Crisis management 1 Culture conflict 1 Defenses 1 Democracy 1 Democratization 1 Drug abuse 1 Economic conditions 1 Education -- 1 Elections -- 1 Equality -- 1 Ethnic conflict 1 Ethnic relations 1 Foreign policy 1 Gender 1 Human rights -- 1 Hunger 1 Intergroup relations 1 less ...