Foreign relations 62 Diplomatic relations 60 Politics and government 60 History 33 Social conditions 23 Economic conditions 20 Economic history 19 more ... Civilization 18 International relations 15 Cold War 11 Legislators 11 Political aspects 11 International economic relations 9 Religion 9 Vietnam War, 1961-1975 9 Foreign economic relations 8 World politics 8 Economic policy 7 Influence 7 Relations 7 Social aspects 7 Equality 6 Influence (Literary, artistic, etc.) 6 National security 6 Economic aspects 5 Political parties 5 Politicians 5 Public opinion 5 international relations 5 Elections 4 less ...