SAN DIEGO (Feb. 13, 2023) Builder 3rd Class Thomas Clark, from Shirley, Massachusetts, installs a corrugated roof during a mass casualty exercise with Sailors from Navy Medicine Readiness Training Command San Diego and from Expeditionary Medical Facility Bravo onboard Marine Corps Base Camp Pendleton. NMRTC San Diego's mission is to prepare service members to deploy in support of operational forces, deliver high quality healthcare services and shape the future of military medicine through education, training and research. NMRTC San Diego employs more than 6,000 active duty military personnel, civilians and contractors in Southern California to provide patients with world-class care anytime, anywhere. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jacob Woitzel)