The goal of disaster nursing is to ensure the highest level of care is provided throughout all phases of a disaster. Disaster nursing follows the DISASTER acronym - Detection, Incident command, Safety and security, Assess, Support, Triage and treatment, Evaluation, and Recovery. Principles include preventing disasters, minimizing and preventing further casualties, rescuing victims, providing first aid and evacuation, medical care, and reconstruction. Disasters are classified as natural or man-made. Policies for emergency management include triage protocols, ABCDE care, trauma management, and quality disaster services.