History 194 Politics and government 121 Economic conditions 50 World War, 1939-1945 46 Foreign relations 40 International relations 31 Social conditions 25 more ... Relations 23 Colonization 18 Political aspects 17 Imperialism 16 Campaigns 15 Economic policy 15 Prisoners and prisons, Japanese 14 Social aspects 14 Spanish-American War, 1898 14 Political activity 13 Colonies 12 Diplomatic relations 12 Prisoners of war 12 History and criticism 11 History, Military 11 Underground movements 11 War 11 Civilization 10 Economic history 10 Filipino Americans 10 Guerrillas 10 Insurgency 9 Military campaigns 9 less ...