A Chief Petty Officer (CPO) is a senior non-commissioned officer in the United States Navy and Coast Guard. This rank is typically achieved after several years of service and is responsible for leading and mentoring junior enlisted personnel. CPOs play a crucial role in maintaining discipline, training, and operational readiness within their units. CPOs are recognized for their expertise in specific technical fields and often serve as a bridge between the enlisted ranks and commissioned officers. They are involved in decision-making processes and help ensure that the mission of their unit is accomplished effectively and efficiently.