18 December 2025 U.S., Japanese forces conduct joint diver-injury drill to strengthen medical readiness YOKOSUKA, Japan — Commander, Submarine Group 7; U.S. Naval Hospital (USNH)Yokosuka; Japan Self-Defense Forces (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...