what does Henry observe on the faces of men as they stampede from the battle?

The officers try to get the running men to stop, using their swords, fists, and cursing to keep them back. They rage with fury at the retreating regiment. The commander of that brigade gallops about on his horse, weeping. He looks like "a man who has come from bed to go to a fire." The fleeing troops pay no attention to any of these officers as they run.