I served the last couple of years of the war, USAF 1971-1976. I was one of the lucky ones however, never had to go "in country". Lost a few close friends to the war, had 3 cousins that served "in country", 2 in the Army and 1 in the USAF. All 3 came home, with no permanent damage.
To those that served "in country",
my Brothers and Sisters and may God Bless you and comfort you. Thank you for your sacrifice.