Politics and government -- 78 Foreign relations -- 68 Biography -- 57 History -- 40 Presidents -- 36 Terrorism -- 16 Biography 14 more ... Relations -- 13 Statesmen -- 11 War on Terrorism, 2001-2009 11 Government policy -- 10 Politics and government 10 World War, 1939-1945 -- 10 Legislators -- 9 History 8 Vietnamese Conflict -- 8 National security -- 7 Biography. -- 6 Political aspects -- 6 Presidents' spouses -- 6 Vietnamese Conflict, 1961-1975 -- 6 Military policy 5 Personal narratives, American 5 Political corruption -- 5 Political culture -- 5 Public opinion -- 5 September 11 Terrorist Attacks, 2001 5 Vietnamese conflict, 1961-1975 -- 5 World politics -- 5 Armed Forces -- 4 less ...