JOINT BASE PEARL HARBOR-HICKAM (Oct. 13, 2023) The Los Angeles-class fast-attack submarine USS Columbia (SSN 771) gets underway from Joint Base Pearl Harbor-Hickam in preparation for exercise Black Widow, Oct. 13, 2023. Black Widow is the premier tactical development exercise for U.S. undersea forces, which integrates submarines, surface ships, and aircraft into a cohesive multi-domain team to track and engage simulated adversary submarines. (U.S. Navy photo by Mass Communication Specialist 1st Class Scott Barnes)