PONCE, Puerto Rico (May 12, 2022) Information Systems Technician 1st Class Brody Vinson and Electrician's Mate 2nd Class Eddie Brannum apply CPR to a training aid during a simulated heat stress medical casualty drill aboard the Freedom-variant littoral combat ship USS Billings (LCS 15), May 12, 2022. Billings is deployed to the U.S. 4th Fleet area of operations to support Joint Interagency Task Force South's mission, which includes counter-illicit drug trafficking missions in the Caribbean Sea and eastern Pacific Ocean. (U.S. Navy photo by Mineman 2nd Class Justin Hovarter)