200307-N-UB406-0039 NORFOLK (March 7, 2020) Sonar Technician (Submarine) 1st Class Ryun Lewis, center, gives a tour of the Virginia-class attack submarine USS Delaware (SSN 791) to Sea Cadets from U.S. Naval Sea Cadet Corps, Alexandria Division, March 7, 2020. Delaware is currently moored pier side at Naval Station Norfolk as it prepares for its upcoming commissioning. (U.S. Navy photo by Mass Communication Specialist 2nd Class Cameron Stoner/Released)