Lt. Jasen Koerner, the medical Command Post Exercise (CPX) current operations officer from Navy Medicine Readiness and Training Command Yokosuka, briefs the CPX team on mission updates and objectives, Oct 31. The three-day exercise, part of Keen Sword 25, focuses on ensuring readiness for Health Service Support (HHS) functions across the Indo-Pacific Region. Keen Sword is a biennial, joint and bilateral field-training exercise involving U.S. military and Japan Self-Defense Forces personnel, designed to increase readiness and interoperability while strengthening the U.S.-Japan alliance.