Colonial question Territorial expansion 25 History 23 Foreign relations 15 International relations 12 Insular possessions 10 Imperialism 7 more ... Politics and government 7 Territories and possessions 6 Frontier and pioneer life 5 Insular possessions of the United States 5 Political aspects 5 Colonies 4 Diplomatic relations 4 Spanish-American War, 1898 4 Eastern question (Far East) 3 Economic conditions 3 Government relations 3 Racism 3 Relations 3 Acculturation 2 Annexation to the United States 2 Christianity and politics 2 Civilization 2 Colonization 2 Foreign public opinion, American 2 Globalization 2 Indians of North America 2 Indians, Treatment of 2 Influence 2 less ...