The Royal Navy Medical Service (RNMS) is a branch of the British Armed Forces responsible for providing medical care to personnel in the Royal Navy and Royal Marines. It includes doctors, nurses, and other healthcare professionals who ensure the health and well-being of service members, both on land and at sea. The RNMS operates in various environments, including ships, submarines, and operational bases. It plays a crucial role in emergency medical response, health promotion, and medical training. The service is essential for maintaining operational readiness and supporting the overall mission of the Royal Navy.