210508-N-OA516-1007 SAN DIEGO (May 8, 2021) – The Lewis B. Puller-class expeditionary mobile base USS Miguel Keith (ESB 5) sits pierside during the ship’s commissioning ceremony. The Miguel Keith is the Navy’s third purpose-built expeditionary sea base (ESB). While originally created to operate as a support ship under Military Sealift Command, USS Miguel Keith has been commissioned to provide greater mission flexibility in accordance with the laws of armed conflict. USS Miguel Keith is named after Marine Corps Vietnam veteran and Medal of Honor recipient Lance Cpl. Miguel Keith and is the first ship to bear the name. (U.S. Navy photo by Mass Communication Specialist 2nd Class Kevin C. Leitner)