I can confirm to a point. My late uncle was Corpsman with the U.S. Marines in the early part of the conflict, including the Chosen Reservior area. He had quite a few pictures of himself, His Marine platoon, as well as other troops, including British. The British Marine Commandos were accepted as brothers in arms by the U.S. Marines. He stated that a lot of their equipment including winter clothing where supplied by the U.S. Several of his pictures showed the Commandoes and the U.S. Marines in indenicial winter clothing. Unfortunitley I do not have the photos and I am not sure who has them now. Hope this helps.