190404-N-CE622-0065 ATLANTIC OCEAN (April 4, 2019) Cmdr. Benjamin R. Ventresca, the commanding officer aboard the Arleigh Burke-class guided-missile destroyer USS Lassen (DDG 82), takes a bearing with an alidade during a sustainment exercise. Lassen is a part of the Harry S. Truman Carrier Strike Group participating in a sustainment exercise, an integrated, comprehensive exercise designed to ensure the Harry S. Truman Carrier Strike Group is ready to meet all mission sets and carry out sustained combat operations from the sea. (U.S. Navy photo by Mass Communication Specialist 3rd Class Katie Cox/Released)