History 5 World politics 4 Foreign relations 2 Government policy 2 Military policy 2 Prevention 2 Special operations (Military science) 2 Terrorism 2 United States 2 Armed forces 1 Balance of power 1 Biography 1 Diplomatic relations 1 Forecasting 1 Generals 1 Geopolitics 1 History, Military 1 Information warfare 1 Intelligence service 1 Military art an science 1 National Security Council (U.S.) 1 National security 1 Officers 1 Officials and employees 1 Power (Social sciences) 1 Targeted killing 1 United States. Air Force 1 War on terrorism, 2001- 1