…synthetic stimulant. So this is actually an interesting story. And it worked. They took the methamphetamine. They didn't have to sleep. Guderian actually, the tank divisions had the most Pervitin. I could see in the archive in Freiburg how the Pervitin was…

…kind of take the enemy in a very short period of time. And that was the time window that Pavitin gave them. Like Guderian praised his troops for staying awake for 17 days and 17 nights. Which sounds insane, but probably it's true because he said it.…