The Muslim presence in the World War II German armed forces is unlikely to come up in U.S. high school history classes or even, in my personal experience, in undergraduate college history courses.  An American adult is most likely to encounter this dark chapter of Nazi history in fictional books or films.  Off the top of my head, the recent popular novel "Sniper's Honor" by Stephen Hunter is a good example.  If you chance to read it, there is a significant Muslim character of officer rank who fights (and yes, brutally and ruthlessly) for Nazi Germany.  The novel is also a good complement to the movie "Enemy at the Gates" and as a primer on Soviet female snipers of the Great Patriotic War - but that's a topic for another day and another night.