well, I hope these groups weren't forgotten:
1.   77,000 Germans were executed for one or another form of resistance by Special Courts, courts-martial, and the civil justice system.
2.  It is estimated that the Germans killed at least 1.9 million non-Jewish Polish civilians 
3.  Of slightly less than one million Roma believed to have been living in Europe before the war, the Germans and their Axis partners killed up to 220,000
4.  Homosexuals,