The Battle of the Wilderness was the first battle between Ulysses S. Grant and Robert E. Lee. The battle cost 4,000 soldiers their lives and wounded 20,000 others and started the final push towards the end of the war. Its site, Wilderness Battlefield near Fredericksburg, is one of the most historic spots in our nation’s history. And you know what wants to set up camp? Wal-mart. From Ken Burns to David McCullough, historians are taking…