170407-N-XX999-002 WASHINGTON (April 7, 2017 Battle damage assessment image of Shayrat Airfield, Syria, following U.S. Tomahawk land attack missile strikes April 7, 2017 from the USS Ross (DDG 71) and USS Porter (DDG 78), Arleigh Burke-class guided-missile destroyers. The United States fired Tomahawk missiles into Syria in retaliation for the regime of Bashar Assad using nerve agents to attack his own people. (U.S. Navy photo/Released)