History -- Terrorism -- Foreign relations -- 5 Government policy -- 4 National security -- 3 Prevention -- 3 Political aspects -- 2 more ... Sources 2 20th century 1 Cold War 1 Counterinsurgency -- 1 Cross- cultural studies 1 Drug traffic -- 1 Foreign relations 1 Guerrilla warfare -- 1 Guerrillas -- 1 History 1 Insurgency -- 1 International relations 1 Islam and politics -- 1 Islam and terrorism -- 1 Islamic fundamentalism 1 Islamic fundamentalism -- 1 Low-intensity conflicts (Military science) 1 Military history, Modern -- 1 Military policy 1 Political aspects 1 Political oratory -- 1 Rhetoric -- 1 September 11 Terrorist Attacks, 2001 1 less ...