what images of war are poignant in this chapter? what are specific examples

"A spluttering sound had begun in the woods. It swelled with amazing speed to a profound clamor that involved the earth in noises. The splitting crashes swept along the lines until an interminable roar was developed. To those in the midst of it it became a din fitted to the universe. It was the whirring and thumping of gigantic machinery, complications among the smaller stars. The youth's ears were filled cups. They were incapable of hearing more."

"Moving to and fro with strained exertion, jabbering all the while, they were, with their swaying bodies, black faces, and glowing eyes, like strange and ugly fiends jigging heavily in the smoke."

"It was clear to him that his final and absolute revenge was to be achieved by his dead body lying, torn and gluttering, upon the field. This was to be a poignant retaliation upon the officer who had said "mule drivers," and later "mud diggers," for in all the wild graspings of his mind for a unit responsible for his sufferings and commotions he always seized upon the man who had dubbed him wrongly. And it was his idea, vaguely formulated, that his corpse would be for those eyes a great and salt reproach."