What America Colonel led the 7th Continental Regiment and is famous for reportedly saying, "Do not fire until you see the whites of their eyes"?
7th Continental Regiment: The 7th Continental Regiment, also known as Prescott's Regiment, was raised April 23, 1775, as a Massachusetts militia regiment at Cambridge, Massachusetts, under Colonel William Prescott. William Prescott:  Prescott is known for his order to his soldiers, "Do not fire until you see the whites of their eyes", such that the rebel troops may shoot at the enemy at shorter ranges, and therefore more accurately and lethally, and so conserve their limited stocks of ammunition.
William Prescott