Carrier Strike Group One, abbreviated as CSG-1 or CARSTRKGRU 1, is one of five U.S. Navy carrier strike groups currently assigned to the United States Pacific Fleet. Carrier strike groups gain and maintain sea control as well as project naval airpower ashore. USS Carl Vinson (CVN-70) is the strike group's current flagship, and as of 2012, other units assigned include Carrier Air Wing Seventeen; the cruisers USS Bunker Hill (CG-52) and USS Lake Champlain (CG-57); and the ships of Destroyer Squadron 1.