Poland’s President Andrzej Duda was among dignitaries and Holocaust survivors who gathered at Auschwitz on January 27, to mark 80 years since the Nazi concentration camp’s liberation by Soviet troops during the Second World War.Video released by the Polish presidency shows wreaths that were laid at the camp’s Death Wall, where, according to the Auschwitz-Birkenau museum, thousands of people were executed. Credit: President of Poland via Storyful