Major Richard Williams (L) who helped liberate the Belsen Concentration Camp with Russian Army General Vasily Petrenko, a liberator of Auschwitz, at the Beth Shalom Holocaust Memorial Centre in Newark, Notts, the first centre of its kind in Britain. * Gen Petrenko, who was 33 when he marched into Auschwitz in 1945, was joined by Maj Williams to tell visitors about conditions they found at the death camps as the allies approached each other across war-torn Nazi Germany.