U.S. alpine warfare capabilities?

[ganulv]

I agree with Fuchs, not sure about 6 weeks though. During Kargil, Indian Army's non mountain infantry were acclimatized for 15 days. Brig Ray may know better.

I guess it may be an issue of semantics. Does ‘acclimatize’ imply nothing beyond “no more altitude sickness at a given altitude” or does it imply “optimized for a given altitude”?

From Zubieta-Calleja, et al.’s article “Altitude adaptation through hematocrit change”:

Adaptation = Time/Altitude, where High altitude adaptation factor = Time at altitude (days)/Altitude in kilometers (km). The time in days required to achieve full adaptation to any altitude, ascending from sea level, can be calculated by multiplying the adaptation factor of 11.4 times the altitude in km.