Complete the following sentence: Several Japanese naval officers had been impressed by the British action in the
Battle of Taranto, in which 21 obsolete Fairy Swordfish disabled half the "Regia Marina" (Italian Navy).<unk> Battle of Taranto, in which 21 obsolete Fairy Swordfish disabled half the "Regia Marina" (Italian Navy). Admiral Yamamoto even dispatched a delegation to Italy, which concluded a larger and better-supported version of Cunningham's strike could force the U.S. Pacific Fleet to retreat to bases in California, thus giving Japan the time necessary to establish a "barrier" defense to protect Japanese control of the Dutch East Indies.<unk> Admiral Yamamoto even dispatched a delegation to Italy, which concluded a larger and better-supported version of Cunningham's strike could force the U.S. Pacific Fleet to retreat to bases in California, thus giving Japan the time necessary to establish a "barrier" defense to protect Japanese control of the Dutch East Indies. Delegation returned to Japan with information about the shallow-running torpedoes Cunningham's engineers had devised.