Northers opposed the war because they believed the south had all the right in their will to secede, and they opposed the EP
Southerns opposed wars was because South Carolina govenerd objected to officers from other states and southerns wanted to keep their way of life.
Greek civilization was affected by their geography because Greece was essentially a bunch of mountainous islands in the Mediterranean Sea . This caused Greece to develop into different city-states each having differences often resulting in waring . Example Sparta and Athens.
The answer is The Rule of Reason
For Example, a Manufacture company May restrict the supply of a product in different geographic market only to existing Retailers so they can earn a higher profit which lead to them creating a better service to customers.
This policy can increase the demand of the Manufacturer's product