U.S. Air Force Senior Airman Eric Spruill, 633rd Security Forces Squadron installation entry controller, blocks ammunition at Joint Base Langley-Eustis, Virginia, Nov 8, 2023. Blocking ammo is a way to examine the ammo and ensure that it is safe to fire while simultaneously accounting for all used and unused ammo. (U.S. Air Force photo by Airman 1st Class Ian Sullens)