I was kind of wondering the same thing because his hat is not standard. Since it's a STUG vehicle I'm going to suggest it's in the east somewhere so if he's not German I'd suggest he's either Latvian, Estonian or Lithuanian. Those dudes willingly sided with Germany just to fight Russia and continued to do so into the 50s.
something to keep me busy during the 30 day “stay-at-home” directive that just went into effect this evening.