USS Iowa
230617-N-UR986-0140 GROTON, Conn. (June 17, 2023) – Christie Vilsack, sponsor of the pre-commissioning unit (PCU) USS Iowa (SSN 797), christens the ship during a 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 unforgiving envir