USS Iowa a
230617-N-UR986-0042 GROTON, Conn. (June 17, 2023) – The crew of the pre-commissioning unit (PCU) USS Iowa (SSN 797), stand in ranks next to their ship during a christening ceremony at General Dynamics Electric Boat shipyard facility in Groton, Connecticut , June 17, 2023. Iowa and crew will operate under Submarine Squadron (SUBRON) FOUR whose primary mission is to provide attack submarines that are ready, willing, and able to meet the unique challenges of undersea combat and deployed operations in unforgi