I've met two Marines who were at Chosin.
Met a few myself.
When I was stationed at Yuma, one of our favorite watering holes was the VFW. Firstly, you'd never pay for a drink, as the old breed always made sure you had plenty. Second, the life stories those guys would tell....wow...just wow. Did shots with a guy one night who'd been in WWII and Korea, and retired the year before vietnam