ATLANTIC OCEAN (March 25, 2023) Fire Controlman (Aegis) 1st Class John Dempsey deploys an aluminum sphere attached to a helium balloon for AN/SPY-1A radar external calibration aboard the Arleigh Burke-class guided-missile destroyer USS Arleigh Burke (DDG 51), March 25, 2023. Arleigh Burke is on a scheduled deployment in the U.S. Naval Forces Europe area of operations, employed by U.S. 6th Fleet to defend U.S., allied and partner interests. (U.S. Navy photo by Mass Communication Specialist 2nd Class Almagissel Schuring)