150604-N-BX824-054 WATERS NEAR GUAM (June 4, 2015) Boatswain's Mate Seaman Rebecca Brook right, from Chesapeake Bay, Va., conducts a respirator fit test on Damage Controlman Fireman Alexander Schriftman, from Churchville, Penn., aboard the Ticonderoga-class guided-missile cruiser USS Antietam (CG 54). Antietam is on patrol in the U.S. 7th Fleet area of responsibility supporting security and stability in the Indo-Asia-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Ricardo R. Guzman/Released)