 Cochrane , by now a Vice Admiral , assumed his position as Commander @-@ in @-@ Chief of British forces on the North Atlantic station in April 1814 and ordered the recruitment of a body of Colonial Marines as he had done six years earlier on Marie Galante . Rear Admiral George Cockburn , Cochrane 's second @-@ in @-@ command on the Atlantic coast , implemented Cochrane 's order recruiting the second Corps of Colonial Marines . It served as part of the British forces on the Atlantic and Gulf coasts of the United States during the War of 1812 . 
