Islam In the Eyes of the West

Islam In the Eyes of the West 
Please read the attached article and answer these questions in essay format.
Questions:
1-according to Ernst, is there a separate Muslim world today?
2-How Samuel Huntington’s thesis of “Clash of Civilizations” is similar to colonial doctrines?
3-What was the general approach of Christian West towards Islam in the Medieval Ages?
4-What were the results of colonial expansions in Muslim countries?