What does the acronym "NCO" stand for in the context of AR 600-55?

In the context of Army Regulation 600-55, "NCO" stands for Non-Commissioned Officer. This term is critical within military structure as it designates a leadership role that does not require a commission but is vital for the effective functioning of military units. NCOs are responsible for training soldiers, ensuring discipline, and maintaining the readiness of their units. They act as the backbone of the Army, often serving as the primary link between enlisted personnel and commissioned officers. Understanding the role and significance of NCOs is central to the principles outlined in AR 600-55, which emphasizes the importance of leadership and accountability in the Army.