For the purpose of commemorating the battle which occurred at Eutaw Springs, in the State of South Carolina, during the Revolutionary War, when title to such lands on the site of the Battle of Eutaw Springs as may be designated by the Secretary of the Interior in the exercise of his discretion as necessary or desirable for battlefield-site purposes, shall be vested in the United States, said area shall be set apart as a battlefield site for the benefit and inspiration of the people and shall be called the Eutaw Springs Battlefield Site.