That’s some history, my FRiend.
Pure coincidence that my dad also passed at age 95 but 7 years ago. Career Army, WW2, Korea & Vietnam. Four Purple Hearts and lived through it but like many/most he seldom talked about it!
One thing that hit him and many was that the National Guard outfits like the 45th & 42nd were started as neighborhood units going into the war. Entire towns could lose a whole generation in a single battle but then the replacements came from all over. My dad had friends and neighbors that are buried in Sicily, Italy and France. They don't do that anymore, a good thing.