OSWIECIM, POLAND - JANUARY 27: Camilla, Duchess of Cornwall, (2nd from L), as well as King Willem of the Netherlands (L), and Polish First Lady Agata Kornhauser-Duda attend the official ceremony to mark the 75th anniversary of the liberation of the Auschwitz concentration camp at the Auschwitz-Birkenau site on January 27, 2020 near Oswiecim, Poland. International leaders as well as approximately 200 survivors and their families are gathering today at Auschwitz today to attend the commemoration. The Nazis killed an estimated one million people at the camp during the World War II occupation of Poland by Nazi Germany. The Soviet Army liberated the camp on January 27, 1945. (Photo by Sean Gallup/Getty Images)
