American War, Beck performed troop duty with Company C, 5th Infantry, and engaged in several actions, including a small battle at Parparia, Narvacan, Ilocos Sur, on 15 February 1901 in which he commanded the detachment.
American War, Beck served with Company C, 5th Infantry, and was promoted to first lieutenant on 25 July 1902 while stationed at Vigan, Luzon. He engaged in several actions, including a small battle at Parparia, Narvacan, Ilocos Sur, on 15 February 1901 in which he commanded the detachment.