Who standardized the duties and responsibilities of the NCO Corps?

The correct answer is Friedrich von Steuben, who played a pivotal role in shaping the modern structure and functionality of the Non-Commissioned Officer (NCO) Corps in the United States Army. During the American Revolutionary War, von Steuben, with his extensive military experience from serving in the Prussian Army, introduced rigorous training regimens and standardized procedures that established the foundation for military discipline and leadership among NCOs.

His contributions were critical in formalizing the roles and responsibilities of NCOs, helping to create a more effective and organized military unit. By advocating for a rank structure and clear expectations for enlisted leaders, von Steuben ensured that NCOs became integral to maintaining order and training within the ranks, which ultimately contributed to the success of American forces during the war.

The other individuals referenced—George Washington, John Adams, and Thomas Jefferson—were influential figures in American history but did not specifically focus on the standardization of military duties and NCO responsibilities in the same way that von Steuben did. Their contributions were more aligned with political leadership and governance rather than military training and organization.