John Wayne, Patricia Neal Operation Pacific (1951) Official Trailer In the South Pacific, submarine officer Duke Gifford (John Wayne) and the crew of the "Thunderfish" are attacked by the Japanese during a rescue mission, and their torpedoes malfunction. Returning safely to Pearl Harbor, Duke meets his ex-wife, Mary (Patricia Neal), who still feels strongly for him but is engaged to a pilot, the brother of Duke's commander, Pop Perry (Ward Bond). Determined to win Mary back, Duke is sidetracked

OPERATION PACIFIC (1951) starring John Wayne as the commander of the fictional USS Thunderfish features several scenes inspired by actual incidents involving U.S. submarines during WWII. #MovieMonday | U.S. Naval Institute