I recall quite some time ago (before I owned a PC) hearing a somewhat cryptic story about a package that Hunter Thompson gave to Warren Zevon to deliver to Jessie (The Body) Ventura at his (Ventura’s) gubernatorial inauguration (Reform Party, Mn). With my interest somewhat recently reinvigorated, I just did a cursory search on that topic, but came up with zilch.
However, I was not surprised at all to learn that Hunter Thompson and Warren Zevon were friends.
It appears that Warren Zevon (two years older than Bruce) did not enlist nor was he drafted into the military. The author of one article on the internet surmises that:
"Given his constant involvement in the music industry from a young age, combined with his personal struggles with addiction and mental health, it is highly improbable that Zevon would have been able to successfully navigate the rigorous demands of military service. He was more occupied with writing songs, touring, and battling his demons than with any potential military career."