Arab-Iranian relations in their immediate region have never been devoid of controversy in the modern era. Historically these controversies emanated mostly from ideological differences (sectarian controversies within varying Islamic schools of thoughts). With the advent of Karbala calamity the foundation was laid for a millennial Shiite ascendency which in turn introduced new dimensions to the politics of the statehood of Sunnite Caliphate. With the rise in colonial geopolitics of the Great Games of the nineteenth and early twenties centuries, spread of British colonial rule in the geographical span of what can be described as contiguous Arab- Iranian region in West Asia caused some forms of political affinities between the two as co-sufferers from colonial rule, which in turn gave way to development of relations between Iran and its Arab neighbours more on the basis of natural regional interests. But withdrawal of the colonial rule from the region in early 1970s left new legacies of friction and conflicts resulting from territorial and border differences which in turn have been exploited by the new geopolitical players to drive apart the two sides.