What is the principal duty and responsibility of a Non-Commissioned Officer (NCO)?

The principal duty and responsibility of a Non-Commissioned Officer (NCO) is training. NCOs play a crucial role in the Army by ensuring that soldiers are well-trained and prepared for their duties. They provide leadership and direction to soldiers, contributing to their professional development and proficiency in their tasks. This includes not only technical skills related to their specific military occupational specialty but also essential soft skills like teamwork, discipline, and adherence to Army values. The NCO is typically the backbone of the Army, bridging the gap between the enlisted ranks and the commissioned officers, and their ability to effectively train soldiers is key to the overall success of the unit and accomplishment of missions.

While executing the mission, ensuring soldier welfare, and maintaining government property are also important aspects of an NCO's role, training fundamentally underpins these responsibilities. Properly training soldiers enhances mission readiness, fosters a positive working environment, and ensures that the proper care for property is understood and practiced.