PORTSMOUTH, Va. (Oct. 20, 2023) Hospital Corpsman 3rd Class Geancalo Casteneda, a general duty corpsman assigned to Navy Medicine Readiness and Training Command (NMRTC) Portsmouth, checks a simulated patient for eye wounds during a Tactical Combat Casualty Care (TCCC) course at Naval Support Activity (NSA) Hampton Roads - Portsmouth Annex, Oct. 20, 2023. TCCC, an evidence based course provides life saving techniques and strategies for Department of Defense first responders, is required for U.S. Navy medical forces in order to maintain deployment readiness. (U.S. Navy photo by Mass Communication Specialist 2nd Class Levi Decker)