World War, 1939-1945 History 17 Concentration camps 13 Holocaust, Jewish (1939-1945) 10 Politics and government 6 Concentration camp inmates 5 Underground movements 5 more ... Nazis 4 Foreign relations 3 Guerrillas 3 History, Military 3 Jews 3 Spaniards 3 Art and the war 2 Atrocities 2 Criticism and interpretation 2 Ethnic relations 2 Influence 2 Intellectual life 2 Jewish resistance 2 Political aspects 2 Prisoners and prisons 2 Prisoners and prisons, German 2 Social aspects 2 Art thefts 1 Buildings 1 Campaigns 1 Causes 1 Collective memory 1 Communists 1 less ...