161027-N-HI707-635 GROTON, Conn. (Oct. 27, 2016) Sailors assigned to Pre-Commissioning Unit (PCU) Illinois (SSN 786) raise the flags during the rehearse for the upcoming commissioning ceremony of USS Illinois the Navy's newest submarine on Oct 29. USS Illinois is the U.S. Navy’s 13th Virginia-Class attack submarine and the fourth US Navy ship named for the State of Illinois. (U.S. Navy photo by Chief Petty Officer Darryl I. Wood/Released)