U.S. Marine Corps Pfc. Daniel Henkel, Marine Wing Support Detachment 31 bulk fuel specialist, stationed at Marine Corps Air Station Beaufort, S.C., fastens a restraint on an all-terrain berm at Poinsett Electronic Combat Range near Wedgefield, S.C., March 23, 2017. Defense Department militaries utilize berms as a transportable fuel-holding facility, capable of catching possible fuel leaks in a deployed environment. (U.S. Air Force photo by Airman 1st Class Christopher Maldonado)