Throughout the novel nature is a constantly recurring theme. It is described in great detail, and always as a beautiful spectacle. Henry often spends time staring at different aspects of the woods which seems to calm him down. After he survived the first onslaught, Henry is relieved that his focus can shift towards appreciating the surrounding environment instead of focusing on fighting. The cracks of rifles and the explosions of artillery are also shown to be an interruption of the natural noises of the woods. Sounds of woodpeckers and insects are drowned out completely by the unnatural fighting taking place.

Red Badge of Courage is certainly anti-war. In providing a contrast between war and nature, Stephen Crane is pointing out the unnaturalness of war. In justifying his running away, Henry points out that it is instinct to run away from destruction. Henry specifically notes a squirrel fleeing before the colliding armies in order to protect itself, and suggests his running away was similarly justified. The question subtlety being asked here is whether or not war should be avoided at all costs. Destruction and death in such a large and organized fashion is a completely unnatural event. It is shown as an interruption in the natural order of the world. The question as to whether war is ever necessary or justified is complicated, but Stephen Crane seems to be arguing that it is not.