Foreign relations Politics and government 584 History 566 World politics 178 World War, 1939-1945 128 Cold War 113 National security 108 Military policy 106 Diplomatic history 102 Imperialism 86 International relations 86 Economic conditions 79 Security, International 79 Political aspects 63 Foreign economic relations 61 Relations 50 Social conditions 50 Causes 48 Colonies 43 Philosophy 40 Addresses, essays, lectures 39 Public opinion 37 Terrorism 36 Influence 35 Economic policy 34 Nationalism 34 Globalization 33 Peace 31 War on Terrorism, 2001- 31 Economic integration 30