U.S. submarines serviced and supplied at sea by submarine tender. Three U.S.

U.S. submarines serviced and supplied at sea by submarine tender. Three U.S. submarines, returning from war pratrol to an advance base somewhere in the Pacific, pace alongsizde a submarine tender for supplies and repairs. Submarine tenders are part of the U.S. Pacific Fleet service Force--a fleet of auxiliaries of every type--which services maimtains, repairs and supplies the combatant vessels of the fleet. The mobile auxiliaries are supplement and backed up by the advance bases on land.