It could be described as a safehouse
        
             
        
        
        
I would say a. sioux indian attacks on stagecoach lines.
        
                    
             
        
        
        
The country will have more need to trade with other countries.If you have more resources then you have more product increasing the need of trade.
        
                    
             
        
        
        
It doubled the size of the US 
The US had to pay 15 million 
Farming was improved