SUBMARINE BASE NEW LONDON, Conn. (April 18, 2024) The honor guard parade the American and Australian flags during a graduation ceremony for students in the Submarine Officer Basic Course at Submarine Base New London, April 18, 2024. The graduation marks the first U.S. Naval Submarine School graduation for Royal Australian Navy officers as part of AUKUS and their last leg of nuclear submarine training before heading out into the U.S. Naval Submarine Force. (U.S. Navy photos by John Narewski)