 From April to October 1951 she cruised to northern Europe, visiting Plymouth, Liverpool, and Weymouth, England; Bremerhaven, Germany; Antwerp, Belgium; and Cork, Ireland and Derry, Northern Ireland.Between 1952 and 1955, "Dennis J. Buckley" completed three tours of duty in the Mediterranean, and served as gunnery and engineering school ship for destroyer officers.She participated in air defense exercises in the North Atlantic and the Gulf of Mexico and trained midshipmen and reservists.