I don't have any idea what you're trying to say here. The US military still gives out stimulants to servicemen, though far fewer of them receive safer drugs than in the past.
I'm only at odds with the words "traditional" and "often". I'm a serviceman and I haven't heard of it. Were you a pilot?
I'm also saying that special forces aren't exactly traditional. Would you say that the military traditionally sports beards and ballcaps because SF do?
The practice is traditional, and it's still done with pilots and special forces. I don't know why you haven't heard about it, the use is well documented.