At least 100 ballads sing his name and his praises, telling tale of a mythical figure: outlaw, bandit, lover, a modern Robin Hood. His image was even carefully crafted by Hollywood so that Americans revered Francisco Villa as a hero. But on March 9, 1916, US troops on the southern border and were told to prepare for an invasion of Mexico. Thousands of American soldiers to join in a hunt for just one man: Villa -- idealistic revolutionary had transformed into an enemy by his shocking nighttime raid into US territory.