History Terrorism Politics and government 55 Prevention 51 Religious aspects 35 Islam 30 Political violence 29 more ... Political aspects 26 Foreign relations 23 Government policy 16 Social aspects 15 Jihad 14 International relations 13 Islam and politics 13 Violence 13 Islamic fundamentalism 12 Social conditions 12 War on Terrorism, 2001-2009 12 National security 11 September 11 Terrorist Attacks, 2001 11 Terrorism in literature 11 History, Military 10 Military policy 9 Terrorists 9 Insurgency 8 War 8 Women terrorists 8 Influence 7 Moral and ethical aspects 7 Radicalism 7 less ...