200701-N-HS117-2009 PACIFIC OCEAN (July 1, 2020) Hospital Corpsman 3rd Class Tyler Romero, from Lancaster, Calif., demonstrates patient response treatment in the medical department aboard the amphibious dock landing ship USS Comstock (LSD 45). Comstock is underway in the western Pacific Ocean conducting routine maritime operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jeffery L. Southerland/Released)