Who was responsible for standardizing NCO duties in the United States?

The standardization of Noncommissioned Officer (NCO) duties in the United States can be attributed to Inspector General Friedrich von Steuben. He played a pivotal role in transforming the Continental Army during the Revolutionary War through his introduction of a standardized system of training and regulations. Von Steuben authored the "Blue Book," officially known as "Regulations for the Order and Discipline of the Troops of the United States," which provided comprehensive guidelines on military structure, drill, and the responsibilities of NCOs, thereby establishing clear and consistent expectations for their roles.

This standardization was crucial as it helped to professionalize the NCO corps, ensuring that they were adequately trained to lead troops effectively and maintain discipline within the ranks. By creating a solid foundation for NCO duties, he played a significant role in shaping the future of military leadership in the United States.