This manual, Army Techniques Publication ATP 4-02.2 Medical Evacuation July 2019, provides doctrine and techniques for conducting medical evacuation and medical regulating operations. Medical evacuation encompasses both the evacuation of Soldiers from the point of injury or wounding to a medical treatment facility staffed and equipped to provide essential care in theater and further evacuation from the theater to provide definitive, rehabilitative, and convalescent care in the continental United States and the movement of patients between medical treatment facilities or to staging facilities. Medical evacuation entails the movement of patients on dedicated ground and air ambulances, medically staffed and equipped to provide en route medical care; supports the military health system; and links the continuum of care. In addition, it discusses the difference between medical evacuation and casualty evacuation as well as coordination requirements for and the use of nonmedical transportation assets to accomplish the casualty evacuation mission. The principal audience for this publication is all commanders and their staffs, command surgeons, Army health systems planners, Army Medical Department personnel and units involved in medical evacuation operations. The Army Health System is a complex system of interrelated and interdependent systems which provides a continuum of medical treatment from the point of injury or wounding through successive roles of medical care to definitive, rehabilitative, and convalescent care in the continental United States, as required. Medical evacuation is the system which provides the vital linkage between the roles of care necessary to sustain the patient during transport. This is accomplished by providing en route medical care and emergency medical intervention, if required, to enhance the individual's prognosis and reduce long-term disability.