Hospitalization in World War II - Chain of Evacuation

Medic Pfc. Harvey White administers blood plasma to
wounded Private Roy Humphrey, 9 August 1943,
Sant' Agata, Sicily, 1943 (US Army Medical Dept)
Planes thundered overhead, artillery rumbled in the distance, and cries of wounded soldiers pierced Georgie's ears.

"Coming through." Two medics rushed past with a litter. A man writhed on top, a shock of red on his gray-green field jacket.

Another medic assisted a soldier who clutched his twisted, bloodstained arm to his chest.

Georgie took a deep breath. Compared to the ravages of battle, her concerns were nitpicky. (On Distant Shores, p. 118)

In my new novel On Distant Shores, the hero serves as a pharmacist in an evacuation hospital and the heroine serves as a flight nurse. To celebrate the book’s release, I’m running a series on hospitalization in World War II. Today I’ll discuss the chain of evacuation, next I’ll discuss mobile and fixed hospitals in more detail, and then I’ll cover evacuation of the wounded.

The Chain of Evacuation

Wartime medical treatment occurred on muddy battlefields under fire, in tent hospitals only miles from the front, and in sterile stateside hospitals.

A complex chain moved patients to where they could best be treated. At all points along this chain, decisions were made regarding when to treat, when to return to duty, and when to evacuate further to the rear.

Forward aid station in Sant'Elia, Italy, 1943
Organic Medical Units

These units were attached to combat units and followed them into battle.

Battlefield: Medics performed first aid and moved the wounded to the aid station, often under fire.

Battalion aid station: About one mile from front. Physicians and medics adjusted splints and dressings, administered plasma and morphine. Soldiers also reported to the aid station for treatment of minor illnesses or mild combat fatigue.

Collecting station: About two miles from the front, near the regiment command post. Further adjustment of splints and dressings, administration of plasma, treatment of shock.

Clearing station: About four to ten miles from front. Here they treated shock and minor wounds, and grouped patients in ambulance loads for transport to field hospitals.

Forward surgical unit, US 11th Field Hospital
near Nicosia, Sicily, 1943
Mobile Hospitals

These hospitals were assigned to a theater of operations and could be packed and moved quickly to follow the battle lines. They were complete hospitals with nursing care, surgical and medical wards, X-ray, laboratory, and pharmacy.

Field Hospitals: Within thirty miles of clearing station. Ideally, the wounded arrived within one hour of injury. Surgery was performed for the most severe cases.

Evacuation Hospitals: Treated illnesses and less urgent surgical cases. Patients could be reconditioned here to return to the front.

500-bed ward of US 6th General Hospital
Casablanca, French Morocco, 1943.
Fixed Hospitals

These hospitals were set up a safe distance from the front, either in the theater of operations or stateside, and they tended to remain in one location for longer periods of time.

Station Hospitals: Usually attached to a military base, designed to treat illnesses and injuries among personnel stationed at that base.

General Hospitals: Large facilities where patients received long-term treatment, sometimes grouped in large complexes. Some of the general hospitals were specialized for certain types of wounds or illnesses, such as for craniocerebral, spine, eye, chest, or neuropsychiatric care.

Convalescent Hospitals: Designed for rehabilitation of the severely wounded soldier who would receive a medical discharge. This type of hospital was a World War II innovation.


Cosmas, Graham A. & Cowdrey, Albert E. The Medical Department: Medical Service in the European Theater of Operations. Washington, D.C.: United States Army Center of Medical History, 1992.

Wiltse, Charles M. The Medical Department: Medical Services in the Mediterranean and Minor Theaters. Washington, DC: Office of the Chief of Military History, Department of the Army, 1965.

Condon-Rall, MaryEllen & Cowdrey, Albert E. The Medical Department: Medical Service in the War Against Japan. Washington, D.C.: United States Army Center of Medical History, 1998.

Links, Mae Mills & Coleman, Hubert A. Medical Support of the Army Air Forces in World War II. Washington, D.C.: Office of the Surgeon General, USAF, 1955.

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