 The 20th Maine Volunteer Infantry Regiment, under the command of Colonel Joshua Lawrence Chamberlain, prevented the Union Army from being flanked at Little Round Top by the Confederate Army during the Battle of Gettysburg.Four U.S. Navy ships have been named USS "Maine", most famously the armored cruiser , whose sinking by an explosion on February 15, 1898 precipitated the Spanish–American War.To the south and east is the Atlantic Ocean and to the north and northeast is New Brunswick, a province of Canada.