Mine tore right through 1" Poultry wire... Had to fortify with plywood.If you want the fighting to start big time, just put some of your boys on one side of a fence and some on the other side. Doesn't matter how good of buddies they were before or who was the top dog before. When they are on opposite sides of a see through fence they get really bold and really go after each other.
If the fence is made of poultry (chicken) wire they might even end up cutting their snoods off.