Since the 19th century the Gulf region has been an area of intense interest, having been influenced first by the British and more recently by the Americans. This book charts the changing security and political priorities of these two powers and how they have shaped the region.Adopting a narrative approach, the author provides background history on British involvement from the 19th century and a detailed analysis of the years after the Second World War, when oil supply became more critical. He covers the growth of US influence and the British withdrawal, and follows more recent changes as the US built up its military presence following Desert Storm and the invasion of Iraq. Looking at the three enduring missions fulfilled by the British - maintaining interstate order, protecting the free flow of commerce, which later included petroleum; and keeping out other Great Powers ' the book demonstrates how these had by 1991 been assumed almost entirely by the American leaders.A comprehensive and thorough look at the history of the Gulf and the contemporary issues affecting the region, this will be essential reading for students of Middle East history, military history and diplomatic history.