International Holocaust Remembrance Day is an international memorial day on 27 January commemorating the tragedy of the Holocaust that occurred during the Second World War. It commemorates the genocide that resulted in the deaths of 6 million Jews and 11 million others, by the Nazi regime and its collaborators. It was designated by the United Nations General Assembly resolution 60/7 on 1 November 2005 during the 42nd plenary session. The resolution came after a special session was held earlier that year on 24 January 2005 during which the United Nations General Assembly marked the 60th anniversary of the liberation of the Nazi concentration camps and the end of the Holocaust. On 27 January 1945, Auschwitz-Birkenau, the largest Nazi concentration and death camp, was liberated by the Red Army.