JOINT BASE PEARL HARBOR-HICKAM, Hawaii (Apr. 3, 2025) – Director of the U.S. Naval Nuclear Propulsion Program Adm. Bill Houston, who completed his Submarine Command Course training on Collins-class submarine HMAS Rankin in 2007, and Chief of the Royal Australian Navy Vice Adm. Mark Hammond, a 2003 graduate of the U.S. Navy Submarine Command Course, embarked USS Montana (SSN 794) for a combined operational familiarization opportunity at sea, April 3, 2025.
