Foreign relations -- Politics and government -- 20 History -- 14 World politics -- 12 Terrorism -- 10 Military policy 8 War on Terrorism, 2001-2009 7 more ... Government policy -- 6 September 11 Terrorist Attacks, 2001 6 War on terrorism, 2001- 6 Causes 4 Decision making -- 4 Statesmen -- 4 Biography -- 3 Diplomatic history 3 Foreign economic relations -- 3 Politics and government 3 Biography. -- 2 Decision making 2 Economic conditions -- 2 History 2 Iran Hostage Crisis, 1979-1981 2 Islam and politics -- 2 Israeli intervention, 1982-1984 2 Military policy -- 2 Moral and ethical aspects 2 National characteristics, American 2 Press coverage -- 2 World War, 1939-1945 -- 2 Airspace (International law) 1 less ...