As seen from France, World War I was first and foremost a matter of transporting men who had to be brought en masse to the front. This article describes the first departures and analyzes the sentiments they elicited: sadness, resignation, fear. Men climbed into the trains and went off to war: these first voyages were followed by countless others that bore little resemblance to those of August 1914. Wounded, exhausted, discouraged, and occasionally rebellious, soldiers passed through the railway stations, which had become the heart and soul of the country. In the towns, fear spread as supplies began to be scarce and living conditions deteriorated. Life unfolded to the rhythm of the passing trains until, at the end and in the aftermath of the war, other train cars arrived bearing those who had died.