Soldiers at Fort McCoy for the Operation Cold Steel exercise participate in exercise operations March 17, 2017, near Range 4 at Fort McCoy, Wis. Operation Cold Steel’s purpose is to qualify select gun crews to support “Objective-T” requirements for Army Early Response Forces, or AERF. Army Reserve forces, which are part of the overall AERF contingency forces, are part of the Army plan to provide a force that can deploy on short notice to respond to contingencies when needed. (U.S. Army Photo by Scott T. Sturkol, Public Affairs Office, Fort McCoy, Wis.)