Terrorism -- Military policy 4 History -- 3 Prevention -- 3 Foreign relations -- 2 National security -- 2 20th century 1 more ... Asymmetric warfare -- 1 Counterinsurgency -- 1 Defenses 1 Deterrence(strategy) 1 Globalization -- 1 Government policy -- 1 Guerrilla warfare -- 1 Guerrillas -- 1 Insurgency -- 1 International cooperation 1 International relations 1 International security 1 Low-intensity conflicts (Military science) 1 Military history, Modern -- 1 Military interrogation -- 1 Political aspects 1 Politics and government -- 1 Prevention 1 September 11 Terrorist Attacks, 2001 1 Violence -- 1 War on terrorism, 2001- 1 Weapons of mass destruction 1 World politics -- 1 less ...