Biography 8 Foreign relations 7 Terrorism 6 History 5 Intelligence service 5 Government policy 4 Prevention 4 World politics 4 Great powers 3 Hegemony 3 Influence 3 Military policy 3 National security 3 Qaida (Organization) 3 September 11 Terrorist Attacks, 2001 3 War on terrorism, 2001- 3 Army 2 Campaigns 2 Case studies 2 Counterinsurgency 2 Diplomatic history 2 Intelligence officers 2 Iraq War, 2003 2 Jihad 2 Naval operations, American 2 Naval operations, Japanese 2 Personal narratives, American 2 Religious aspects 2 United States 2 Vietnam War, 1961-1975 2