Exhaustion common in cold climates especially at high elevations. Several factors must be taken into account when planning military operations in a cold weather area. Requirement for heat will place a premium on fuel. Camouflage is difficult due to ice fog created by personnel and equipment and tracks left in the snow. Navigation is difficult due to lack of aids, blending of features, and blowing snow.
Night operations are the rule because of limited mobility during daylight.
Conditions which tend to restrict movement on the ground have little or no effect on enemy air operations. Roads, hills, and rivers found in all regions provide good navigational aids for enemy aircraft. Road-bound maneuver and support units are easily detected and attacked from the air. Heavy snow in the winter and poor ground conditions in other seasons may require units to move on foot. Resupply may have to be made by air.