180221-N-SJ730-050 NORFOLK (Feb. 21, 2018) Ambassador of the Socialist Republic of Vietnam to the United States Pham Quang Vinh signs the guest book during a visit of the aircraft carrier USS George H.W. Bush (CVN 77). Vinh visited the ship to promote continued interoperability and a strong relationship between Vietnam and the U.S. The ship is in port in Norfolk, Va., conducting routine maintenance in preparation for the Board of Inspection and Survey (INSURV). (U.S. Navy photo by Mass Communication Specialist 2nd Class Hank Gettys/Released)