Alli and Omar are struggling with an assignment about the period between World War I and World War II. They need to explain the causes of ethnic conflict in Europe, the
rise of Nazism in Germany, and England gaining territory in Africa after World War I. It
seems to them that the report they must write is going to be huge! Then Omar
realizes that it's easier than they thought. They could trace all three back to just one
thing. What is it that Omar has realized these can all be traced back to?

O The Treaty of Versailles

O the Russian Revolution

O The breakup of the Ottoman Empire

O The rise of Hitler in Germany