 Now the task group seized its chance to carry out the boarding operation it had been planning for months, for the first capture by Americans of an intact German submarine.Successful in taking control of the submarine and executing the damage control that made its towing practicable, the group was awarded the Presidential Unit Citation for this action.In one of the last antisubmarine actions of the Atlantic war, "Chatelain" took part in a 12-hour hunt for the submarine which had torpedoed on 24 April 1945.