170531-N-UX013-0281 SEA OF JAPAN (May 31, 2017) Lt. Tao Cheng, tactical action officer aboard the amphibious dock landing ship USS Ashland (LSD 48), monitors activity during a detect to engage exercise (DTE). DTE tests the ship’s ability to track and engage low flying aircraft using integrated Air Surveillance and Self Defense Systems. Ashland is on a patrol in the Indo-Asia-Pacific region to enhance partnerships and be a ready-response force for any type of contingency. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jonathan Clay/Released)