The German army issued an amphetamine (technically, a methamphetamine) called Pervitin. What I don't know is how common that use was. Der Speigel did an article on Pervitin and the German army a while back and that story has been picked up and let's just say "elaborated on" by a number of newspapers and magazines. No reference that I can find really tells you how common that use was. Was it issued to everyone prior to certain battles, or was it something that was only issued in a controlled manner by German doctors and medics? The reason this interests me is because I'm currently gathering data for a book on the US 30th Division (Old Hickory) and have come across an almost inexplicable change between the actions of the 1st/2nd SS (Leibstandarte and Das Reich) in Mortain in August 44 vs actions in Belgium (Malmedy/Stavelot/Parfondruy/La Gleize) in December of 44 when Leibstandarte was again fighting the 30th Division. In Mortain, the Waffen SS acted very honorably towards American prisoners and French civilians alike. I could cite a host of examples here, but let's just say their actions were above reproach. Like a southern sheriff, they were "tough but fair." However, in December of 44 there were a number of jarring incidents involving Leibstandarte units. In the main, they still fought with honor but it's evident that in a number of cases people and small units went off the rails. When you dig into this you find some very strange and paranoid claims. SS troopers seemed to believe that local Belgian civilians were calling in artillery strikes on them. They claimed that Belgian civilians in Stavelot were shooting at them. Reprisals were carried out - civilians massacred. In Stavelot, the 117th was sickened by an attack across the Ambleve river. Hundreds of SS troopers charged into the chest-deep river to assault the American position on the other side while screaming Nazi slogans. That American position was on a high bank overlooking the river and the GI's were in stone houses heavily armed with machine guns. They simply slaughtered the SS in the water. GI's who witnessed this claimed the SS were "hopped up" on something and it's hard to disagree. The attack was insane from any tactical viewpoint and completely inexplicable when you consider how experienced and battle hardened the Leibstandarte was. Anyway, I can't help but wonder if Leibstandarte wasn't issued Pervitin in large quantities for operation Wacht am Rhein? Amphetamine use will eventually lead to delusions and paranioa and by the time the 4 Kampfgruppes making up Leibstandarte reached this area they had not slept for 4, 5, 6 days. If they were using Pervitin that whole time, it would explain much.