171005-N-HI707-406 NORFOLK (Oct. 5, 2017) Sailors assigned to the Virginia-class attack submarine Pre-Commissioning Unit (PCU) Washington (SSN 787) walk across the brow during rehearsals before the boat's commissioning ceremony on Oct. 7, 2017. Washington is the U.S. Navy's 14th Virginia-Class attack submarine and the fourth U.S. Navy ship named for the state of Washington. (U.S. Navy photo by Mass Communication Specialist Darryl I. Wood/Released)