190314-N-BR470-1060: PASCAGOULA, Miss. -- Ship Sponsor Ellyn Dunford traces her initials before Ingalls Shipbuilding welder Cedric Harman welds them into a steel plate to be fastened to the ship during the keel authentication ceremony of the future USS Bougainville (LHA 8) at Huntington Ingalls Industries Pascagoula shipyard March 14. The laying of the keel traditionally marked the first step in ship construction. With today's advanced modular shipbuilding, the keel laying ceremony now recognizes the joining together of a ship's components and is a major milestone in the ship's construction. (U.S. Navy photo by Samantha Crane/Released)