I'm under the impression that there were no non-Slavs who fought for the Soviet Union, except for this guy. Besides individuals, I don't think that there were many Tajiks, Uzbeks, Tataristanis, Chuvashians, Turkmenistanis, Georgian militias, Kazakhs, or Soviet Jews who fought in this war. The participation of the Soviets was largely a Slavic issue fought by Belarussians, Russians, and Ukrainians.
That's a wrong impression and it is also offensive since millions of non-slavs lost their lives fighting for their country. About 1.4 mln kazakhs went to war and only half of them came back. 500 of them were so brave they got the highest reward possible - the Hero of the Soviet Union.
This guy pretty much saved Moscow from being overrun by germans, Kassym Kaisenov was so ferocious, germans believed he is an invincible monster who eats human flesh, this guy put a soviet flag on the Reichstag.
So please, never say that sort of things again.