Airmen assigned to the 28th Munitions Squadron receive instruction from Petty Officer Second Class Nick Werner, a minesman assigned to the Navy Munitions Command Atlantic Unit, Charleston, S.C., at Ellsworth Air Force Base, S.D., July 20, 2016. Airmen trained with Sailors to build approximately 60 500-pound inert mines as well as two 2,000-pound inert mines. (U.S. Air Force photo by Airman 1st Class Sadie Colbert)