A sergeant is a non-commissioned officer in the military, typically responsible for leading and training a group of soldiers. They play a crucial role in maintaining discipline and ensuring that their team follows orders from higher-ranking officers. Sergeants often have specialized skills and experience, making them essential for effective unit operations. In many police departments, a sergeant holds a supervisory position, overseeing officers and ensuring that procedures are followed. They are responsible for managing daily activities, providing guidance, and addressing any issues that arise within their team. This role is vital for maintaining order and efficiency in law enforcement.