161027-N-HI707-662 GROTON, Conn. (Oct. 27, 2016) Sailors assigned to the Virginia-class attack submarine Pre-Commissioning Unit (PCU) Illinois (SSN 786) salute after bringing the ship to life during a rehearsal for the submarine's upcoming commissioning ceremony scheduled for Oct 29. Illinois is the U.S. Navy’s 13th Virginia-Class attack submarine and the fourth U.S. Navy ship named for the state of Illinois. (U.S. Navy photo by Chief Petty Officer Darryl I. Wood/Released)