Ender's fight with Stilson

After the monitor is removed, Ender is confronted by Stilson and his gang on the way to the bus stop. They taunt him and threaten him, and Ender realizes that without the monitor, no one will come to his rescue. He decides to end the conflict permanently by attacking Stilson with a vicious kick to the chest, then continuing to kick him in the ribs, groin, and face even after he is down. Ender's actions are calculated to instill fear in the other boys, ensuring they will never bother him again. He feels a deep sense of shame and guilt, recognizing that he is becoming like his brother Peter, who he fears and despises. The fight is observed by the International Fleet, who see it as evidence of Ender's ruthless determination and strategic thinking.