Terrorism Prevention 131 History 90 Religious aspects 64 Islam 54 Government policy 45 Politics and government 38 Foreign relations 36 Political aspects 36 Terrorists 36 Jihad 23 Psychological aspects 22 Social aspects 22 Islamic fundamentalism 21 National security 21 Political violence 20 War on Terrorism, 2001- 18 Islam and politics 17 Security measures 17 International relations 16 September 11 Terrorist Attacks, 2001 16 Psychology 15 Security, International 15 World politics 14 Violence 13 War on Terrorism, 2001-2009 13 Democracy 12 Globalization 12 Intelligence service 12 Research 9