What was the cause of world war ii

The cause of World War II are discussed below.  

Explanation:

There were different causes of World War II but three causes were main and these three main causes were; Treaty of Versailles, Rise of Hitler and Japanese territorial expansion.Treaty of Versailles was also known as the seed of the World War II, Under this treaty, Germany was declared guilty by the Allied countries and they imposed humiliating sanctions on Germany.The rise of Hitler and his Nazi Party was another cause of World War II which through the whole of Germany into the mouth of War.Japanese territorial expansion led to the attack on pearl harbor which was become another cause of the II world war.

The league of nations was found in 1919 to keep peace after world war l.but it failed to prevent world war ll in 1939,so in 1945 the nations of the world set up a new organization,the united state (un).since then, the un has encouraged international cooperation and worked to resolve conflict