Oh cool. You did a simple search.
Now go to their FOUNDING documents.
The Torah. The Koran. Tribal areas in Africa. Etc.
Basically, those not like you deserve what they get.
Certainly most cultures have moral provisions for fighting outsiders, but given that Christian societies have also found moral provisions for battles and crusades, I don’t think you’re making any case that belief in a Supreme Being is the genesis of the social contract.