He reported back to sea duty as executive officer of the nuclear attack submarine . DSRVs are transportable by truck, aircraft, ship, or by specially configured attack submarine. Baldwin was trained to drive an attack submarine. The Soviet nuclear attack submarine shadowed the task group. The Soviet Victor-class nuclear attack submarine "K-314" shadowed the task group. She began operations as an attack submarine from Pearl Harbor. Casabianca is a nuclear attack submarine of the French Navy. "Triton" entered the Portsmouth Naval Shipyard in June 1962 for conversion to an attack submarine. "George Washington" was originally laid down as the attack submarine . She later was reclassified as an attack submarine and redesignated SSN-618. Gordon Cremer collided with the Russian attack submarine K-276 "Kostroma". The U.S. currently operates three classes of fast attack submarine&colon; the , , and es. A nuclear-powered attack submarine has been leased from Russia. The Rubis type is a first class generation nuclear attack submarine of the French Navy. The bulk of the USN's SSN fleet has been the "Los Angeles"-class attack submarine.