You want their neighbors to stop attacking...
Okay Sir, what if I was your neighbor, and I decided that I wanted some of your yard to be my yard...for my family is growing, and I really have no concern for your family...would you not protest?
And then when you protest, I simply show you that I have bigger and better weapons, so you best stand down. And not only that, but there is this big neighborhood across the river that are all my allies and they have the biggest weapons of all...so you really really best stand down.
Then where would that leave you? Hmmm? Contemplate.