{Except for those who take refuge with a people between yourselves and whom is a treaty or those who come to you, their hearts strained at [the prospect of] fighting you or fighting their own people. And if Allah had willed, He could have given them power over you, and they would have fought you. So if they remove themselves from you and do not fight you and offer you peace, then Allah has not made for you a cause [for fighting] against them.} 4:90

Your article topics are always interesting.

I want to add a small thing that irks me here, as some sources tend to omit and take things out of context (accidentally?) of the very basis of Islamic knowledge, often comparing it to the Crusade when the war rules are different and there should be no forced acceptance of religion (2:256).