International Relations of the Middle East

This is the question… I need it answered thoroughly in no more than two pages. Thanks!​
Peter Mandaville asserts that, “Indeed, Islam has often functioned, not in opposition to, but as a form of, national cohesion.” For all of the countries of the modern Middle East, this assertion reflects the ongoing tension between two set of identities which, according to Mandaville, function as explanatory factors to their foreign policy and international affairs: religion (particularly Islam) and nationalism (secular nation state). What is, according to Mandaville, the nature and scope of the relationship between Islam and the secular nation state and what are the ramifications of this relationship on the foreign policies of Saudi Arabia and Iran on the one hand and Egypt and Turkey on the other hand? Outline the evidence that Mandaville provides to support his contention that the identity perspective is the determinant variable of the regional and international relations of the Middle East. Explain the extent to which Mandaville’s contention is more applicable than other schools of thoughts of international relations.