Thank you, gentlemen.
Ricochetrider, your dad was a member of the Greatest Generation, using Tom Brokaw's excellent moniker. They left home, did their duty, returned and quietly went on with their lives. When I returned from RVN in '70, my dad took me to a local restaurant where be bumped into a friend of his. Like your father, his friend was a three-war veteran. Dad explained that I had just returned and inquired which war, in his experience, had been the toughest. To dad's (and my) surprise, the veteran said, "Vietnam."
On the way home that day, dad (a WWII South Pacific medic) said, "If you ever want to talk about it, I'll listen." I waited eighteen years and I'm very glad he was there. These days, the old medic and I go to the VA clinic together. Dementia has robbed his short term memory but I'm glad I get to hear about the Battle for Luzon on some of those drives. What a privilege!!