A Sailor assigned to the Navy Munitions Command Atlantic Unit Charleston, S.C., attaches a pinging mechanism to a case to be attached to an inert MK 62 mine at Ellsworth Air Force Base , S.D., July 20, 2016. Once the mine has deployed, the piece will send out a transmission signal so Navy personnel can recover the training munition. (U.S. Air Force photo by Airman 1st Class Sadie Colbert)