World War, 1939-1945 History 37 Politics and government 14 Concentration camps 10 National socialism 10 Causes 9 Holocaust, Jewish (1939-1945) 9 Campaigns 6 Economic aspects 6 Foreign relations 4 Influence 4 Jews 4 Refugees 4 Social aspects 4 Underground movements 4 World War, 1914-1918 4 Art thefts 3 Atrocities 3 Collective memory 3 Cultural property 3 Destruction and pillage 3 Diplomatic history 3 Jewish property 3 Reconstruction (1939-1951) 3 Religious aspects 3 Repatriation 3 Social conditions 3 Antisemitism 2 Art treasures in war 2 Berlin, Battle of, Berlin, Germany, 1945 2