Terrorism -- 532 Terrorism 270 Prevention 120 Foreign relations -- 82 Islam 77 Prevention -- 77 Religious aspects -- 75 more ... Government policy -- 53 National security -- 53 War on terrorism, 2001- 50 History -- 43 War on Terrorism, 2001-2009 42 Politics and government -- 41 Terrorists -- 37 September 11 Terrorist Attacks, 2001 35 Prevention. -- 34 World politics -- 32 Jihad 27 Psychological aspects 26 History 23 Islam and politics -- 22 International relations 21 Political aspects 20 Politics and government 20 International cooperation 18 Islamic fundamentalism -- 18 Military policy 18 Security, International 18 Government policy 17 Islamic fundamentalism 17 less ...