151219-N-LV331-002 MOBILE, Ala. (Dec. 19, 2015) Secretary of the Navy (SECNAV) Ray Mabus delivers the principal address during the christening ceremony of the Navy's newest Independence-variant littoral combat ship, the future USS Omaha (LCS 12). (U.S. Navy photo by Mass Communication Specialist 2nd Class Armando Gonzales/Released)