Because he was a doctor, the evangelist Saint Luke was chosen as the patron saint of doctors in the Middle Ages.
Traditionally, 18 October is Army Medical Service Day, when the armies meet for events based around the common values of "Dedication, Humanity, Availability"
The VAB SAN (Medical Armoured Advance Vehicle) has proved successful in emergency aid missions for those wounded on operations. Identifiable by the large red crosses on a white background, it is equipped in the same way as an ambulance and can carry up to three injured persons lying down, or 2 lying down and 4 seated.
FOR FURTHER INFORMATION…
Book: Alain Larcan, Jean-Jacques Ferrandis, The Army Medical Service during the First World War, LBM, 2008.
Video: Exercise for saving lives in combat, Available: https://www.soldat-metier.com/service-sante/2409-exosan-video-exercice-operation-sanitaire.html
Photo source: French tanks