Although some guys miss CWT due to deployments now and then, 2d & 3d Bn (along with Group HQ) gets regular training for cold weather and high altitude AOs here in CO. Now, learning how to suck it up in the cold isn't necessarily important, but some skills like skiing with equipment certainly are perishable. Other skills, such as building a hide site in the snow or cold weather survival are good to practice to become better, but I think they're more knowledge-based, in that once you know how, you won't really lose the ability.
The real question is how much Russian or Serbo-Croat are you speaking on the dark continent?
