Foreign relations Politics and government History 25 Cold War 9 Presidents 9 Intelligence service 7 Subversive activities 7 more ... Espionage 6 Espionage, Soviet 6 Spies 6 Influence 5 Government relations 4 Indians of North America 4 Officials and employees 4 Social conditions 4 Study and teaching (Higher) 4 Communism 3 Iraq War, 2003-2011 3 Arab-Israeli conflict 2 Colonies 2 Colonization 2 Economic conditions 2 Economic policy 2 Election 2 Nineteen eighties 2 Petroleum industry and trade 2 Political aspects 2 Political violence 2 Territorial expansion 2 Annexation to the United States 1 less ...