How did the league of nations hope to prevent future wars between nations?

The League was responsible for the operation of the Treaty. 
Through the International Court of Justice. 

By encouraging co-operation through business and trade. 

By encouraging nations to disarm. 

Improving living and working conditions throughout the world.' The League could put pressure on the guilty country, bringing world opinion against it. 

Members could refuse to trade with the guilty country (economic sanctions). 

South carolina was so angry about the election of lincoln that they seceded from the union on december 20, 1860. they attacked fort sumter later, on april 12, 1861.