10 September 2026 U.S. Navy, JMSDF, ROKN, and RAN Conduct a Multilateral Anti-Submarine Warfare Exercise The Japan Maritime Self-Defense Force (JMSDF), Republic of Korea Navy (ROKN), Royal Australian Navy (RAN), Royal Australian Air Force (RAAF) and the U.S. Navy successfully completed a Multilateral Anti-Submarine Warfare Exercise (ASWEX) in the Western Pacific, Aug. 25-27, 2026.The exercise featured...