190405-N-DA737-0184 PEARL HARBOR, Hawaii (April 5, 2019) Capt. Carl Andrew Carlson, commanding officer of the guided-missile destroyer USS Zumwalt (DDG 1000), speaks with Rear Adm. William C. Greene, director of fleet maintenance for U.S. Pacific Fleet during a tour of the ship. Zumwalt is conducting the port visit as part of its routine operations in the eastern Pacific. Zumwalt-class destroyers provide the Navy with agile military advantages at sea and with ground forces ashore. (U.S. Navy photo by Mass Communications Specialist 2nd Class Jonathan Jiang/Released)