Foreign relations 771 History 724 Biography 340 Politics and government 329 United States 312 Military policy 262 Armed Forces 205 National security 172 World War, 1939-1945 167 Terrorism 162 World politics 122 Prevention 104 Presidents 96 Campaigns 95 Government policy 88 Case studies 80 Intelligence service 75 Management 73 Thesis 72 Juvenile literature 70 Relations 66 Vietnam War, 1961-1975 66 War on terrorism, 2001- 66 History, Military 60 Dissertations, Academic 59 Leadership 59 Personal narratives, American 59 Military relations 58 Defenses 56 Army 54