This piece suffers from some problems, in particular the narrow bourgeois definition of democracy in regards to the "Tunisian exception", but it is worth a read, especially the first part of it that deals with the historical background. Failed dream of political Islam
“The West won the world not by the superiority of its ideas or values or religion (to which few members of other civilizations were converted) but rather by its superiority in applying organized violence. Westerners often forget this fact; non-Westerners never do.” —Samuel P. Huntington, The Clash of Civilisation and the Remaking of the World Order, 1996, p. 51