Effect of Natural Factors on Geopolitics of Persian Gulf

Persian Gulf with 226000km2 in size contains 62% water of the whole world, and the Gulf includes almost 60% of oil resources, namely 750 billion of barrels (Hafezniya, 2014: 61). It is geopolitically considered as one of the most sensitive regions in the world. It has been investigated more politically than strategically, economically, commercially, over resources of energy, oil, aquatics…, but some researchers have just examined effect of natural factors on geopolitical equations of the region. Thus, the study tries to investigate the natural factors to determine and analyze geopolitical reasons and its effect on diplomacy of the region, as well as, to know geopolitical reasons of Persian Gulf. The study uses documentary and descriptive analysis method and library. The important and influential natural effects were defined in the region. Arc 2, ENVE 4,GIS software were used to analyzed and draw maps. The results show that natural locations limited to Persian Gulf and conditions of climate, topography and sea are the main factors to impact on the geopolitical region, especially attracting transregional powers and international disputes.