The USS Kraken (SS-370) was a Balao-class submarine of the United States Navy, launched on April 30, 1944, by the Manitowoc Shipbuilding Company in Wisconsin. She was commissioned on September 8, 1944, and featured the typical robust design of Balao-class submarines, built for wartime service in the Pacific Theater. The vessel’s early journey involved transportation via the Mississippi River to Illinois, then to Louisiana, where she was launched into service. After transit through the Panama Canal and intensive training in the Gulf of Panama, Kraken arrived at Pearl Harbor in November 1944. During her wartime service, Kraken conducted four war patrols. Her first patrol began in December 1944, supporting carrier strikes in Indochina and performing lifeguard duties, including rescuing a pilot from the USS Lexington. She moved to Fremantle, Australia, in February 1945. Her second patrol in March 1945 saw her supporting strikes against Singapore and Saigon, again performing lifeguard duties. Her third patrol was notable for her successful engagement in the Java Sea, where she bombarded Merak and sank a coaster and a small ship, as well as damaging a Japanese convoy, sinking an oiler and a coastal steamer. Her final patrol started in July 1945 but was cut short due to Japan’s surrender. Following the war, Kraken returned to the United States, arriving in San Francisco in September 1945. She participated in postwar Navy celebrations and was placed in reserve in 1946. After over a decade in reserve, she was activated for transfer to Spain in 1959, where she was renamed Almirante García de los Reyes. This vessel, which became the only modern Spanish submarine of the 1960s, was designated S-31 and nicknamed "treinta y único." She served in the Spanish Navy until her decommissioning in 1974 and was scrapped in 1982. Throughout her history, the USS Kraken represented a significant example of wartime submarine design and was notable for her combat achievements and subsequent international service.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.