190320-N-YS418-062 ENGLISH CHANNEL (March 20, 2019) The Danish patrol frigate HDMS Thetis (F 357), right, and other NATO warships line up behind the guided-missile destroyer USS Gravely (DDG 107), not pictured, in preparation to conduct divisional tactics during a photograph exercise. Gravely is underway on a scheduled deployment as the flagship of Standing NATO Maritime Group 1 to conduct maritime operations and provide a continuous maritime capability for NATO in the northern Atlantic. (U.S. Navy photo by Lt. Izaac Hite/Released)