CAMP LEJEUNE, N.C. (March 23, 2021) U.S. Marine Lance Cpl. Jason Lindbergh, an intelligence specialist with the 22nd Marine Expeditionary Unit, submerges himself underwater while utilizing an air tank regulator during underwater egress training aboard Camp Lejeune, N.C., March 23, 2021. The underwater egress trainer teaches Marines how to quickly and safely exit a submerged aircraft. (U.S. Marine Corps photo by Cpl. Antonio F. Garcia)