My recollection is that, during Vietnam, the Air Force, Navy, and Marines were primarily volunteer units. Draftees were largely inducted into the Army. I suppose there could be exceptions.
My bet is he was a wayward youth who took the judge up on his "go in the Marines or go to jail option." This was a common source of 'volunteers' for the Marines and Army back then. And I would venture to guess that based on this guy's need to continually boast of being a Vietnam Vet that the most action he saw was probably from a bar stool in Saigon on payday. The no B.S. combat vets don't feel the need to go around and remind everyone that they were there, as though it were an extension of their penis. I must say I concur wholeheartedly on not returning to the draft. I served during both the draft and all-volunteer versions of the military and there's no comparison between the 'can-do' professionalism of today's volunteers and the "Hey man, I didn't ask to be here" attitude of the typical draftee we had back in 1970. No doubt this traitorous, destructive pant load is exactly the type of draftee that RAT B@$tard Rangel would love to impregnate the greatest military on earth with.