how does henry feel about the enemy today ?how have his feelings changed since yesterday?

In chapter 17, Henry is angry at the enemy. He sees them as ruthless killers rather than just the enemy. He used to be afraid of them but now he rages against them as they approach.

This advance of the enemy had seemed to the youth like a ruthless hunting. He began to fume with rage and exasperation. He beat his foot upon the ground, and scowled with hate at the swirling smoke that was approaching like a phantom flood. There was a maddening quality in this seeming resolution of the foe to give him no rest, to give him no time to sit down and think. Yesterday he had fought and had fled rapidly. There had been many adventures. For to-day he felt that he had earned opportunities for contemplative repose.