GROTON, Conn. (Nov. 10, 2021) U.S. Navy and area firefighters prepare to board the Los Angeles-class submarine USS Cheyenne (SSN 773) during a large-scale fire response exercise on board Naval Submarine Base New London in Groton, Conn., Nov. 10, 2021. The exercise, hosted by Naval Submarine Support Facility (NSSF) New London, Cheyenne, and base leadership, offered more than a dozen regional firefighter and first responder organizations the opportunity to experience shipboard firefighting and Navy best practices. (U.S. Navy photo by Lt. Seth Koenig)