He spent the next two weeks staring at other men's backs through clouds of dust, and stepping on ground that had already been stepped on by thousands of other men and horses. His ears were filled with the tromping of feet, boots, and hooves; the creaking of overladen barley-carts; nonsensical teamsters' exhortations; marching-songs in unknown languages; and the blowing of trumpets and beating of drums of regimental signal-men desperately trying to keep their throngs from getting all mixed up with alien throngs.