The war which occurred in the mid-1800s that weakened the economy of the Ottoman Empire was the Russo-Turkish War, led by the Turks on one side, and Russia, Bulgaria, Romania, Serbia, and Montenegro on the other.
        
             
        
        
        
He tries to awaken the reader to the terrible 
<span>living conditions of immigrants in the cities around the turn of </span>
<span>the century. </span>
        
                    
             
        
        
        
In the late 1800s, people in many parts of the world decided to leave their homes and immigrate to the United States. Fleeing crop failure, land and job shortages, rising taxes, and famine, many came to the U. S. because it was perceived as the land of economic opportunity. Others came seeking personal freedom or relief from political and religious persecution. With hope for a brighter future, nearly 12 million immigrants arrived in the United States between 1870 and 1900. During the 1870s and 1880s, the vast majority of these people were from Germany, Ireland, and England--the principal sources of immigration before the Civil War. That would change drastically in the next three decades.
 
        
             
        
        
        
Well the other guys answer is technically right their a few more details to it. The league of nations was also another attempt to stop further wars between various groups in the world. They didn't want another Holocaust or world war to happen so it made it that all nations would turn on one nation or nations if they did go rogue and attack. 
        
                    
             
        
        
        
Answer:
the violence in a revolution 
Explanation:
translated to English