On 27 January 1945, Auschwitz-Birkenau, the largest Nazi death camp, was liberated by Soviet troops. International Holocaust day is an international memorial day on 27 January commemorating the victims of the Holocaust. The number of Jewish victims of the Holocaust in the Soviet Union is estimated at approximately 2,000,000.
International Holocaust day commemorates the genocide that resulted in the death of an estimated 6 million Jews, 1 million Gypsies, 250,000 mentally and physically disabled people, and 9,000 homosexual men 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. Resolution 60/7 establishing 27 January as International Holocaust Remembrance Day urges every member nation of the U.N. to honor the memory of Holocaust victims, and encourages the development of educational programs about Holocaust history to help prevent future acts of genocide.”