A M-136 Volcano weapons system of the 979th Mobility Augmentation Company, 478th Engineer Battalion, 926th Engineer Brigade, 412th Theater Engineer Command, based in Lexington, Ky., emplaces training mines during the company's training at Wilcox Range on Fort Knox, Ky., April 1, 2017. This was part of Engineer Qualification Table XII. This company was the first U.S. Army Reserve unit to accomplish this feat. (U.S. Army Reserve Photo by Sgt. 1st Class Clinton Wood)