Early American interests in the Middle East

many early American interests in the Middle East, from geopolitical to missionary. Compare these early interests with contemporary American interests in the Middle East. in particular, how has become 1) a global hegemon after WWII and 2) the concurrent process of ‘secularization’ transformed American foreign policy thought and behavior toward Israel and the Middle East region generally? What themes have remained constant, and what appears new?  Would you attribute changes to America’s new geopolitical role after WWII or to the increasing secularization of American society?