Snowball studies the military campaigns of Julius Caesar. He had found an old history book in the farmhouse describing Caesar's exploits, and from this he learned how to organize the defense of the farm against the assault by the humans that Jones leads in the fall. In reality, though, it is as much Snowball's tactics as his leadership and courage that make him an effective military leader. He leads the successful charge against the humans, and is wounded by Jones in the process. He becomes a "war hero" of sorts, receiving a medal for his exploits. Snowball is, of course, meant to symbolize Leon Trotsky, who led the Red Army in the Bolshevik Revolution and the Russian Civil War that followed. Like Trotsky, who was exiled and ultimately murdered by Stalin, Snowball is driven from the farm when he becomes a threat to Napoleon.