170523-N-DZ075-0143 PACIFIC OCEAN (May 23, 2017) Sailors assigned to the crash and salvage team aboard the Arleigh Burke-class guided-missile destroyer USS Stethem (DDG 63) perform safety checks on an MH-60S Sea Hawk helicopter assigned to the “Black Knights” of Helicopter Sea Combat Squadron (HSC) 4 in the western Pacific. The U.S. Navy has patrolled the Indo-Asia-Pacific routinely for more than 70 years promoting regional peace and security. (U.S. Navy photo by Mass Communication Specialist 2nd Class Ryan Harper/ Released)