This manual, Army Techniques Publication ATP 3-21.50 Infantry Small-Unit Mountain and Cold Weather Operations August 2020, provides the Infantry small-unit leader with doctrinal guidance on how company-sized units and below conduct combat operations in mountain and cold weather regions. Commanders and subordinate leaders combine the basic doctrine described in ATP 3-21.10 and ATP 3-21.8, with tactics, techniques, and procedures specific to missions in mountain and cold weather areas of operations. This publication supersedes ATTP 3-21.50. The principal audience for ATP 3-21.50 is the commanders, staff, officers, and noncommissioned officers within the Infantry battalion. The audience includes the United States Army Training and Doctrine Command institutions and components and the United States Army Special Operations Command. This publication serves as an authoritative reference for personnel developing doctrine, materiel and force structure, institutional and unit training, and standard operating procedures for the Infantry small-unit operations.
