How does Philip Caputo use imagery in A Rumor of War?

Imagery:

"The horror lay in the recognition that the body, which is supposed to be the earthly home of an immortal soul, which people spend so much time feeding, conditioning, and beautifying, is in fact only a fragile case stuffed full of disgusting matter. Even the brain, the wondrous, complex organ that generates the power of thought and speech, is nothing more than a lump of slick, gray tissue. The sight of mutilation did more than cause me physical revulsion; it burst the religious myths of my Catholic childhood."

"The stench of death is unique, probably the most offensive on earth, and once you have smelled it, you can never again believe with conviction that man is the highest being in earthly creation."

"That night I was given command of a new platoon. They stood in formation in the rain, three ranks deep. I stood front and center, facing them. Devlin, Lockhart, and Bryce were in the first rank, Bryce standing on his one good leg, next to him the faceless Devlin, and then Lockhart with his bruised eye sockets bulging. Sullivan was there too, and Reasoner and all the others, all of them dead except me, the officer in charge of the dead."