Terrorism -- 92 Terrorism 44 Foreign relations -- 29 War on terrorism, 2001- 26 Prevention -- 24 Prevention 18 Government policy -- 17 more ... Religious aspects -- 15 Islam 14 History -- 13 National security -- 13 World politics -- 13 Politics and government -- 10 September 11 Terrorist Attacks, 2001 8 Military policy 7 Political aspects 7 International cooperation 6 Jihad 6 Case studies 5 Political aspects -- 5 Terrorists -- 5 Biography -- 4 Civil rights -- 4 Globalization 4 Influence 4 International relations 4 Islam and politics -- 4 Islamic fundamentalism -- 4 Political violence 4 Security, International 4 less ...