Gen. Gregory Guillot, center, Commander, North American Aerospace Defense Command and U.S. Northern Command, speaks with Vice Adm. Brendan McLane, right, commander, Naval Surface Force, U.S. Pacific Fleet, and Cmdr. Matt Adams, commanding officer of the Arleigh Burke-class guided-missile destroyer USS Spruance (DDG 111), during a visit to the ship at Naval Base San Diego, July 2, 2025. Gen. Guillot discussed the Southern Border mission and thanked Spruance Sailors while on board. U.S. Northern Command is working together with the Department of Homeland Security to provide additional military forces and capabilities at the southern border. (U.S. Navy photo by Mass Communication Specialist 1st Class Sara L. Eshleman)