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U.S. Navy Lt. Hillary Lutkus tracks and monitors air contacts aboard the Arleigh Burke-class guided-missile destroyer USS Chung-Hoon (DDG 93). Chung-Hoon, part of the Nimitz Carrier Strike Group, is currently underway in 7th Fleet conducting routine operations. 7th Fleet is the U.S. Navy's largest forward-deployed numbered fleet, and routinely interacts and operates with 35 maritime nations in preserving a free and open Indo-Pacific region.