150801-EO381-130 NORFOLK, Va. (Aug. 1, 2015) Chief of Naval Operations (CNO) Adm. Jonathan Greenert makes remarks during the commissioning ceremony for the Virginia-class attack submarine USS John Warner (SSN 785) at Naval Station Norfolk. John Warner is the 12th Virginia-class attack submarine to join the fleet and the first Virginia-class attack submarine to be homeported in Norfolk, Va. (U.S. Navy photo by Mass Communication Specialist Seaman Casey Hopkins/Released)