Stephen Crane 
Wounds in the Rain [EPUB ebook] 

Twenty-five men were making a road out of a path up the hillside. The light batteries in the rear were impatient to advance, but first must be done all that digging and smoothing which gains no encrusted medals from war. The men worked like gardeners, and a road was growing from the old pack-animal trail.
Trees arched from a field of guinea-grass which resembled young wild corn. The day was still and dry. The men working were dressed in the consistent blue of United States regulars. They looked indifferent, almost stolid, despite the heat and the labour. There was little talking. From time to time a Government pack-train, led by a sleek-sided tender bell-mare, came from one way or the other way, and the men stood aside as the strong, hard, black-and-tan animals crowded eagerly after their curious little feminine leader.