As an Army vet, I totally understand what you are saying. You had a HUGE RESPONSIBILITY with your duty assignment along the DMZ at a young age.....and your decision-making was important (at that time...the difference between a quiet day along the DMZ or the start of WW III).
Although I served much later...my father was stationed in South Korea during the times you were there at the DMZ...and my father is still quite alive today. No doubt a big part of those front-line soldiers in 2d Inf Div.
Do you recall what unit he was with? My first tour I was at the position I described above. My second tour was at 2nd Division G-2, hence my handle. “ICorpsVet” would probably just confuse people.