High on Hitler and Meth: Book Says Nazis Were Fueled by Drugs

There was recently a review critical of this book: https://www.theguardian.com/books/2016/nov/16/blitzed-drugs-...

So were the US armed forces.

Previous discussion: https://news.ycombinator.com/item?id=12575020

As a german that sounds like old news. My understanding is that "Panzerschokolade" is common knowledge.