World War, 1939-1945 History 546 Campaigns 159 Foreign relations 128 Politics and government 121 Holocaust, Jewish (1939-1945) 109 Diplomatic history 94 Social conditions 91 Atrocities 72 Jews 70 Social aspects 66 Public opinion 62 Causes 58 History and criticism 58 Social life and customs 57 Propaganda 51 Social history 47 Influence 46 Literature and the war 45 Mass society 45 Economic aspects 44 World War, 1914-1918 44 Underground movements 40 Social surveys 39 National socialism 38 Concentration camps 37 Secret service 37 Women 33 Motion pictures and the war 30 Psychological aspects 25