History 235 World War, 1939-1945 94 Foreign relations 90 International relations 58 Politics and government 53 Jews 34 Relations 31 more ... Prisoners of war 28 Holocaust, Jewish (1939-1945) 26 Diplomatic relations 25 Emigration and immigration 23 Public opinion 23 Social conditions 22 National socialism 21 History and criticism 18 Prisoners and prisons, German 18 Germans 17 Government policy 17 Cold War 16 World War, 1914-1918 16 German Americans 15 Immigrants 15 Intellectual life 13 Political and social views 13 Aerial operations, American 12 Campaigns 12 Economic conditions 12 Refugees 12 Armed Forces 11 Foreign public opinion, American 11 less ...