I remember hearing my WW1 grandfathers and WW2, Korean war veteran uncles saying just about the same thing.
Hell, sometimes a sound, a face or smell flashes me back.
Nothing can change what we did bro.
Except now every day is gravy.
Also honor those who remain that returned. They gave and gave in ways it can be difficult for anyone who hadn't been through it can appreciate. I can only guess at how it was. I have worked with quite a number of vets that have helped me along in my work, in and out of the Army. All that I have met were decent men and women.