Vice Adm. Barry M. Costello was relieved by Vice Adm. Samuel J. Locklear III as commander of U.S. 3rd Fleet during a change of command ceremony May 3 at fleet headquarters in Point Loma. During his tour as commander, U.S. 3rd Fleet, Costello advanced the Navy’s Sea Shield vision for a technologically advanced Navy. “Together we have taken fleet training to the next level, taken the lead for the Navy in homeland defense and disaster relief, and helped shape the Navy of the future through leadership of the Sea Shield requirements process,” he said. Costello retires from active duty after serving his country for more than 31 years. As U.S. 3rd Fleet commander, he was responsible for training and deploying more than 35,000 Sailors on 134 operational assets.