Who said "War is just bullying that's legal."?

This quote is attributed to Nelson Muntz.

War is just bullying that's legal. - Nelson Muntz

"War is just bullying that's legal."

Nelson Muntz War

"Ha-ha!"

"Your tears of unfathomable sadness!"

"I'm gonna enjoy this, Bart. I'm gonna enjoy this a lot."

"Eat my shorts, Simpson!"

"Some battles are worth fighting."

"Sometimes you have to become the monster to stop the monsters."

"Skynet sent me back through time to kill you."

"War teaches us the value of peace."