200307-N-UB406-0047 NORFOLK (March 7, 2020) Sonar Technician (Submarine) 1st Class Ryun Lewis, right, demonstrates line-handling procedures to Sea Cadets from U.S. Naval Sea Cadet Corps, Alexandria Division, during a tour aboard the Virginia-class attack submarine USS Delaware (SSN 791), 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)