My brother in law was a Vietnam era vet. However, he never once saw the jungle. He had flat feet.
I was actually stationed in the Far East, but security restrictions prohibited me from approaching within 100 miles from any war zone (Vietnam) or communist country (no Hong Kong vacations for my unit...)
I definitely do not consider myself a "Vietnam War Veteran" -- and refuse to identify myself as such.
That doesn't mean that I'm not (justifiably) proud of my [classified] service!
TXnMA