The answer is: Islam became the main religion
        
             
        
        
        
The world war two broke out when Germany invaded Poland. Britain and France consequently declared war on Germany to enforce the terms of the Versailles treaty. but they were already late because their appeasement policy had already served to militarize  and arm Germany.
        
             
        
        
        
This policy was called "containment" - the idea was to contain communism from spreading to new countries without trying to actively challenge the communist system in the countries that already had it.
This policy lead to some proxy wars, in which the US fought the Soviet Union for the free countries. 
        
             
        
        
        
Answer:
Explanation:
World War I has aptly been called a war of illusions that exposed in sharp relief all the follies of the prewar generation. The war plans of the generals had misfired at once, and expectations that the intensity of modern firepower would serve the offense, or that the war must be brief, proved horribly false. Germany expected to achieve hegemony in Europe as a step toward world power, and instead world powers were called into play to prevent hegemony in Europe. Socialists thought war would bring general strikes and revolution, and instead the war inspired patriotic national unity. Monarchists hoped war would bolster the old regimes, and instead it cast down the remaining dynasties of eastern Europe.