Military policy Terrorism -- 6 National security -- 3 Prevention -- 3 Prevention 2 Security measures 2 Air power -- 1 more ... Asymmetric warfare -- 1 Counterinsurgency -- 1 Defenses 1 Deterrence(strategy) 1 Foreign relations -- 1 Government policy -- 1 Guerrillas -- 1 History -- 1 Homeland security 1 Information warfare -- 1 Infrastructure -- 1 International cooperation 1 International security 1 Just war doctrine 1 Prevention. -- 1 Safety measures 1 Security Management 1 Transportation -- 1 United States 1 War on terrorism, 2001- 1 Weapons of mass destruction 1 less ...