. "mass-scale looting" . "plundered by Nazi Germany" . "needed to be seized" . "Einsatzgruppen unit seizures, 1939\u20131945" . "World War II looting of Poland" . "looted by occupational authorities" . "stolen in World War II" . . "looted by Nazi Germany in World War II" . "Looting" . . "Bureau of the Government Representative for Polish Cultural Heritage Abroad, 1991-" . "in Nazi-occupied Poland" . "looted" . "looted by the German fascist invaders" . "SS-Ahnenerbe unit seizures, 1939\u20131945" . "looted Poland" . . "looting" . . "Polish works of art looted during World War II" . "Loot of cultural artifacts" . "Nazi looting of Poland" . "robbed" . "Bureau of Revindication and Damages (Poland), operated from 1945 to 1951" . "looted by Germans during the Second World War" . "looted by Germans" . "World War II looting of Poland" . . "was seized" .