Growing up, I remember stories of how my Grandfather (Dad's dad) worked on many of the bridges and hi-rise buildings in Houston. He was so very proud of having been a part of that, and we ALL thought that his accomplishments would stand for well over 100 years!
Sadly, not one of the structures he worked on is still standing. Buildings get razed all the time, with no regard for those who gave blood, sweat and tears to build them. Their monuments are gone.
I think this is a lot of why we (society) don't remember as well as we should. I've always believed that we had an EXTREME wealth of knowledge in the older generations - people who have seen more; experienced more; have a better understanding of how things "should" be. ...Well, that's debatable I guess. In "my" opinion that's how it should be. But I guess the exploding population combined with the explosion of technology helps to mask the older generations, as well as thee vast wealth of knowledge and wisdom that they hold.
Dad's dad fought in WWI. Don't think he was a part of WWII. Dad served during Korean War. I served during peacetime. ...Hopefully one day there will be no more war. If that time ever comes, it will either be WONDERFUL, or it will be a fully oppressed society controlled in its entirety by only a few.
Sorry, started going a bit into never-never land.
I know this post isn't directed specifically to the persons mentioned in the OP, but it IS directed at ALL former military, as well as the rest of our aging society. ...A tribute to our lost generations.