MARINE BASE HAWAII (April 20, 2021) U.S. Marines in the Recon Leaders Course give the two minute warning in preparation to jump out of a CH-53 Sea Stallion helicopter during a helocast training event, Marine Corps Base Hawaii, April 20, 2021. The purpose of the training is to teach Marines how to insert into a body of water from an air asset. (U.S. Marine Corps photo by Lance Cpl. Brandon Aultman)