Actually, the civil war make their relationship became much worse.
Because of the civil war, the ally has to lose a lot of resources for war supplies and equipment. This led to a situation where the allies no longer able to pay the treaties that they promisd to pay to the Sioux, which eventually ended up in conflict between the two group.
        
                    
             
        
        
        
To stop Germany from taking over the world and to keep them from destroying our shipping
        
                    
             
        
        
        
Answer:
A. the Soviet Union was threatening to expand its influence.
Explanation:
Under the Truman Doctrine the help and assistance was insured to be provided to the countries facing the ills from the United States and the Soviet Union. The doctrine was entitled to provide economic and military assistance to Greece and Turkey. U.S. president Harry S. Truman took the step of helping these nations so as to counter the totalitarian forces against their aggressive nature. Such steps were taken in order to preserve the international peace and security. 
 
        
             
        
        
        
Answer:
C) development of medieval guild towns and cities.
Explanation: