Ronnie the Rep said:
Just to counterbalance this. My father served on the Russian convoys for a time during the war and the Russians treatment of the ordinary german POW was as bad as the death camps. Several times the British crews were confined to the ships after fights with the locals over their inhuman treatment
The Russians hadn't signed the Geneva Convention I believe so treated the German POW's badly generally. However, Germany had signed it and therefore should have treated Russian POW's well but they didn't. The Jewish ones were executed along with many others who were politically or racially suspect. Nearly 60% of Russian POW's (over 3m) were killed in German hands.
As Germany had taken and mistreated vast numbers of Russian prisoners long before the Russians captured large numbers of Germans, you could understand the rationale, even if you didn't agree with the brutality of the treatment.
In Bert Trautmann's autobiography, he talks about the brutality of the Eastern Front but then when he was captured by British soldiers, the first thing they did was offer him a cup of tea. He immediately felt they were his sort of people.