A Marine with 1st Marine Division escapes from a Modular Amphibious Egress Trainer during Underwater Egress Training at the Infantry Immersion Trainer facility, Marine Corps Base Camp Pendleton, California, March 19, 2019. The Underwater Egress Trainer program teaches Marines and other authorized personnel to egress from sinking or submerged platforms, including aircraft, amphibious ships or ground vehicles. (U.S. Marine Corps photo by Cpl. Dylan Chagnon)