History 450 Politics and government 52 Literature and the war 36 Participation, American 25 History and criticism 23 Causes 21 Foreign relations 21 more ... Refugees 20 Influence 19 Military participation 19 Social aspects 18 Participation, Foreign 16 World War, 1939-1945 16 Women 15 Communism 13 International relations 12 Collective memory 11 Diplomatic history 11 Public opinion 11 Social life and customs 11 Atrocities 10 Manners and customs 10 Participation, British 10 Political aspects 10 Americans 9 British 9 Campaigns 9 Political refugees 9 Spaniards 9 Anti-fascist movements 8 less ...