A Petty Officer is a non-commissioned officer in the military, particularly in the Navy and Coast Guard. They hold a rank above seaman and below chief petty officer, serving as leaders and specialists in various fields. Petty Officers are responsible for training junior personnel, overseeing daily operations, and ensuring that tasks are completed efficiently. In addition to their leadership roles, Petty Officers often have specific technical skills related to their job. They may work in areas such as engineering, navigation, or communications. Their expertise is crucial for maintaining the effectiveness and readiness of their units.