18 December 2025 U.S., Japanese Forces Conduct Joint Diver-Injury Drill to Strengthen Medical Readiness YOKOSUKA, Japan — Commander, Submarine Group Seven; U.S. Naval Hospital (USNH)Yokosuka; Japan Self-Defense Force (JSDF) Hospital Yokosuka; Japan Maritime Self-Defense Force (JMSDF) Undersea Medical Center and the U.S. Naval Ship Repair Facility and Japan Regional Maintenance Center’s (SRF-JRMC) Navy...