03 July 2026 RIMPAC 26: Pacific Submarine Force efforts to preserve undersea domain advantage JOINT BASE PEARL HARBOR-HICKAM, Hawaii — During Exercise Rim of the Pacific (RIMPAC) 2026, Commander, Submarine Force, U.S. Pacific Fleet (COMSUBPAC) units will use realistic at-sea training scenarios to demonstrate unique capabilities in order to maximize advantage in the undersea domain. This...