Yes we did. Many of those soldiers were Jewish refugees from Germany and almost ALL of them were PATRIOTS who did not try to prosleytize their fellow soldiers to accept the Nazi Volksgemineschaft!!!!
Werner Klemperer (Col. Klink), John Banner (Sgt. Schultz), and Leon Askin (Ge. Burkhalter) of Hogan’s Heroes were born in Germany and Austria and served in the US Army during WW2.
I think Klemperer insisted that the Germans look like buffoons during the series.