I never remember seeing the ROK soldiers doing that when I was there but their military seemed to be more like ours was during the Vietnam era as you would see higher ups knocking the crap out of them right out in the open sometimes. They hated the Koreans assigned to the US units because they got that assignment by being connected usually. They would taunt them about it when we ran into them. They were friendly with the US soldiers however. You would eventually just go numb to the cold over there which was nice because you didn't feel it anymore but it is a point where frostbite could get you. We had a few in my unit get frostbite over there. Speaking of Germany I can't believe the stuff they got in the field etc. compared to the US. They had it much better than our combat arms people as far as amenities in the field.