 "Dennis J. Buckley" sailed from Boston on 1 May 1956 to join the Pacific Fleet.Arriving at Long Beach on 28 June, she got underway on 9 July for a tour of duty in the western Pacific from which she returned to Long Beach on 21 October.During her second Far Eastern tour, in 1957, she screened , patrolled off Taiwan briefly, and served as flagship for Commander, Destroyer Flotillas, western Pacific, during October, when she was visited by the Chief of Naval Operations, Admiral Arleigh A. Burke.