"Mud" image: A British soldier standing against a background of thick grey clouds heavy with rain. He looks dejectedly down at the earth, his hands hanging loosely by his sides. He has an oilskin draped over his shoulders, a tin helmet on his head, and his gas mask hanging round his neck. He is covered with a layer of mud from head to toe; his hands as thickly encrusted as his boots, and his face the same pallid colour as the earth.