FM 31-72: Mountain Operations
Field manual 31-72 is designed to guide the infantry battle group commander, his staff, and subordinate leaders in mountain operations. It is designed also as a guide for commanders of supporting units and for staff officers of higher headquarters whose duty it may be to submit recommendations on the employment of units in mountain warfare. It covers the mission and employment of the infantry battle group and supporting arms as well as specialized technique and training required for combat in mountainous terrain.