A U.S. Army Soldier from the 74th Engineer Dive Detachment goes through a decontamination process after a simulated contaminated water diving field training exercise at Joint Base Langley-Eustis, Virginia, Nov. 16, 2020. Surface-supply diving involves a diver using a diving helmet that is supplied with breathing gas and communications through an umbilical from the shore or from a support vessel. (U.S. Air Force photo by Senior Airman Anthony Nin Leclerec)