No man's land was originally the area of land between the trenches of the opposing sides in World War I and other wars of that period which involved trench warfare. It was so called because the land belonged to neither side; it was in a kind of limbo between the opposing armies. No man's land was a very dangerous area because it usually provides none of the cover that trenches are designed to. However, soldiers were forced to venture into it when advancing, and stretcher bearers[?] would need to traverse it if they were to bring in the wounded.
... the fall of 1943 COSSAC begun to direct SOE and OSS activities that were connected to the invasion plans. Eventually it took orders from Supreme Headquarters of Alli ...