What specific improvement did Major Jonathan Letterman introduce regarding the transport of wounded soldiers?

Answer

He implemented standardized ambulance corps to replace reliance on private or commandeered wagons

Prior to the changes implemented by Major Letterman, casualty transport was unreliable and disorganized, often relying on whatever wagons were available or could be seized from civilians. Letterman recognized that consistent, rapid transport was vital to the survival of the wounded. To address this, he created standardized, dedicated ambulance corps. This innovation ensured that a reliable transport network was always available to ferry soldiers from the aid stations to the division field hospitals, effectively closing the gap between the point of injury and the site of definitive care.

What specific improvement did Major Jonathan Letterman introduce regarding the transport of wounded soldiers?
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