Jan. 31 (UPI) -- The U.S. Navy held a keel laying and authentication ceremony for the future USS Lyndon B. Johnson Zumwalt-class guided-missile destroyer.
The keel laying ceremony marked the joining of the developing ship's components months ahead of the start of the ship's construction. The event was held at General Dynamics-Bath Iron Works' shipyard in Bath, Maine, and was attended by industry and military partners in addition to daughters of former President Lyndon B. Johnson.