War on terrorism, 2001- Foreign relations -- 16 Terrorism -- 13 September 11 Terrorist Attacks, 2001 6 Government policy -- 5 Politics and government -- 5 World politics -- 5 more ... Military policy 4 Prevention -- 4 Terrorism 4 Imperialism 3 Prevention 3 Civil rights -- 2 Globalization 2 Globalization -- 2 History -- 2 International cooperation 2 Iraq War, 2003- 2 Islam 2 Islam and politics -- 2 Jihad 2 National security -- 2 Political aspects 2 Religious aspects -- 2 Security, International 2 Strategy 2 Anti-Americanism 1 Armed forces 1 Ballistic missile defenses 1 Case studies 1 less ...