Stalin's NKVD started to round up the Kalmkys. Their crime, some had served the Germans. Of the 95,000 ethnic Kalmyks, about half died enroute or during their first winter in Siberia. Stalin's order was absolute. Ethnic Kalmky's were pulled out of the front line infantry and tank units and deported. Included were 21 Kalmyk soldiers that had been awarded "Hero of the Soviet Union." for their service in combat to the Soviet Union.