The Things They Carried
Azar is an example of what happens if the character of the tough guy goes too far. Azar is so tough, he either can't tell when he's being a jerk or he simply doesn't care. He blows up Ted Lavender's puppy and doesn't understand why everyone's mad at him. He kicks Tim when he's down – literally, in the head. He's not exactly the antagonist, though; that kind of casual brutality that's simply a part of war.