GROTON, Conn. (Dec.19, 2023) Santa waves from aboard the Virginia-class fast-attack submarine USS Colorado (SSN 788) as the ship prepares to moor during a homecoming event at Naval Submarine Base New London in Groton, Conn., Dec. 19, 2023. Colorado and crew operate under Submarine Squadron (SUBRON) 4, 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 environments across the globe. (U.S. Navy photo by Chief Petty Officer Joshua Karsten)