Requisition

If a friendly faction controls a resource building that you need, instead of going to war over it you can choose to buy if off them using the requisition button in the command panel. The cost is proportional to the value of the target and the intimidation and hostility between your factions. Releasing the requisition will return it to the control of its native faction, remove its cost from your expenses, and reduce hostilities. Any units based out of this building will be disbanded or become homeless.