Art treasures in war 40 World War, 1939-1945 23 Art thefts 21 History 21 Art 10 Destruction and pillage 7 Cultural property 5 Lost works of art 5 Cultural policy 4 Protection 4 Art and the war 3 Confiscations and contributions 3 Conservation and restoration 3 National socialism and art 3 Provenance 3 Reparations 3 Art and state 2 Art collections 2 Collectors and collecting 2 Holocaust, Jewish (1939-1945) 2 Moral and ethical aspects 2 Painting 2 Administration 1 Altarpieces, Spanish 1 Amber art objects 1 Art dealers 1 Art, Classical 1 Art, European 1 Art, Renaissance 1 Booty (International law) 1