Actually, it's even better. The soldiers are from a stock photo called 'soldiers from different countries', or something like that. And I don't think any of those countries was the US.
It's been over 20 years for me, but while I know we eventually learned about WWII in High School, I don't remember how much we covered the Holocaust. Most of what I learned about that was from Sunday and Hebrew schools.
I do know that I had no idea that we had concentration camps for US citizens of Japanese descent until I read George Takai's autobiography.