Which of the following is NOT one of the three principles of casualty removal/extraction?

The principle that is not included among the three main principles of casualty removal or extraction is training. The three core principles are safety, MARCH, and speed.

Safety is paramount in any aspect of casualty extraction as it ensures the protection of both the casualty and the rescuers from further harm. The MARCH acronym refers to the systematic approach to assessing and managing the casualty — managing massive hemorrhage, airway, respiration, circulation, and hypothermia. Speed is also crucial, as quickly evacuating a casualty can significantly improve the chances of survival and lessen the severity of injuries.

While training is essential for individuals performing casualty extraction to ensure they are prepared and capable of executing these principles effectively, it is not one of the defined principles for the actual process of casualty removal.