"On U.S. military uniforms, flag patches are worn on the right shoulder, following the vehicle convention with the union toward the front. This rule dates back to the Army's early history, when both mounted cavalry and infantry units would designate a standard bearer, who carried the Colors into battle.
As he charged, his forward motion caused the flag to stream back. Since the Stars and Stripes are mounted with the canton closest to the pole, that section stayed to the right, while the stripes flew to the left."source: Wikipedia
"Let Americans disdain to be the instruments of European greatness!
Let the thirteen States, bound together in a strict and indissoluble Union, concur in erecting one great American system,
superior to the control of all transatlantic force or influence,
and able to dictate the terms of the connection between the old and the new world! "Alexander Hamilton