150604-N-BX824-054 WATERS NEAR GUAM Boatswain's Mate Seaman Rebecca Brook, 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. Antietam is on patrol in the 7th Fleet area of responsibility supporting security and stability in the Indo-Asia-Pacific region.