This article aims at analysing how the September 11 terrorist attacks have caused the formation of a new geopolitical vision of an area called the 'Greater Middle East' and how this formation has led to changes in US foreign policy towards this region. To do that, the article first presents a theoretical background against which the modern geopolitical imagination of the USA is formulated. It considers the links between national traumas/myths, geopolitical codes and visions, and foreign policy actions. The article then applies this analysis to the case of the Greater Middle East with respect to how this imagined geography shapes the foreign and security policy of the USA. It concludes that even though this imagined region has been presented in texts as justifying US-led policies with liberal underpinnings, it has in reality laid the ground for and been used for justifying US extra-territorial intervention in the region. © Taylor & Francis Group, LLC.