U.S. Navy Hospital Corpsman 2nd Class Will Jones, right, attached 4th Light Armor Reconnaissance Battalion, 4th Marine Division and U.S. Marine Lance Cpl. Christophe Marlin Jr., left, a rifleman with India Company, 3rd Battalion, 25th Marine Regiment, 4th Marine Division in support of Special Marine Air-Ground Task Force UNITAS LXIII renders aid to a simulated casualty on a Marine during a combat casualty care drill while aboard the amphibious transport dock ship USS Mesa Verde (LPD 19) during exercise UNITAS LXIII in the Atlantic Ocean, Sept. 17, 2022. Practical application of tactical combat casualty care ensures Marines and Corpsmen can apply essential life saving techniques in a timely and efficient manner. UNITAS trains forces to conduct joint maritime operations through the execution of anti-surface, anti-submarine, anti-air, amphibious and electronic warfare operations that enhance warfighting proficiency and increase interoperability among participating navy and marine forces. (U.S. Marine Corps photo by Cpl. Ryan Schmid)