Politics and government -- 10 History -- 6 Foreign relations -- 4 Presidents -- 4 Biography -- 2 Legislators -- 2 Presidents' spouses -- 2 more ... Race relations 2 Vietnamese conflict, 1961-1975 -- 2 African Americans 1 Afro-Americans -- 1 Airspace (International law) 1 Armistices 1 Biography 1 Biography. -- 1 Budget -- 1 Budget deficits -- 1 Case studies 1 Case studies -- 1 Civil rights 1 Civil rights movements -- 1 Economic conditions 1 Economic conditions -- 1 Economic policy -- 1 Election -- 1 Executive power -- 1 Fiscal policy -- 1 Government spending policy -- 1 Israel-Arab War, 1973 -- 1 Korean Air Lines Incident, 1983 1 less ...