Here's a breakdown of Bruno's fury:
* Frustration and Anger: Bruno is confined to the "outpost" and has no friends or activities. He can't play outside, go to school, or even have decent food. This constant frustration leads to anger, particularly directed at his mother and father for making him move.
* Fear and Anxiety: Bruno is afraid of the "furnace" he sees in the distance, and he hears disturbing stories about the people on the other side of the fence. He senses that something sinister is happening, but he doesn't fully understand the extent of it. This fear further fuels his anger and frustration.
* Lack of Control: Bruno feels completely powerless in this situation. He's unable to change his circumstances and doesn't understand why he's been forced to move. This lack of control intensifies his anger and makes him feel trapped.
Bruno's anger is a manifestation of his confusion, fear, and helplessness in a situation he cannot comprehend. He lashes out at his family and seeks solace in his imagination, but he is ultimately overwhelmed by the strange and terrifying world he finds himself in.