Influence Politics and government History 14 Foreign relations 11 Conservatism 6 Presidents 6 Vietnam War, 1961-1975 6 more ... Political aspects 5 Relations 5 Social conditions 5 World politics 5 Political and social views 4 Political culture 4 Military policy 3 Missing in action 3 Political activists 3 Prisoners and prisons, North Vietnamese 3 Prisoners of war 3 Antisemitism 2 Arab-Israeli conflict 2 Berlin Wall, Berlin, Germany, 1961-1989 2 Cold War 2 Decision making 2 Economic policy 2 Ethnic relations 2 Iraq War, 2003-2011 2 National security 2 Politicians 2 Public opinion 2 Right and left (Political science) 2 less ...