190610-N-XN169-1036 ARABIAN SEA (June 10, 2019) Boatswain’s Mate Seaman Heather Montgomery, from Tuscaloosa, Ala., uses an alidade while standing watch aboard the Arleigh Burke-class guided-missile destroyer USS Mason (DDG 87). Mason is deployed to the U.S. 5th Fleet areas of operations in support of naval operations to ensure maritime stability and security in the Central Region, connecting the Mediterranean and Pacific through the Western Indian Ocean and three strategic choke points. (U.S. Navy photo by Mass Communication Specialist 3rd Class Lasheba James/Released)