14 April 2026 U.S. Naval Hospital Yokosuka and JSDF Hospital Yokosuka Strengthen Medical Alliance with Joint Casualty Drill YOKOSUKA, Japan — Medical personnel from U.S. Naval Hospital (USNH) Yokosuka and Japan Self-Defense Force (JSDF) Hospital Yokosuka participated in an annual bilateral mass casualty drill March 11 to enhance joint medical response capabilities and lifesaving procedures...