This book provides an alternative perspective of International Relations from Hiroshima to 9/11, both its diplomacy and mainstream scholarship are linked by realpolitik, in a vicious circle of retrogressive symbiosis. It simultaneously undermined the UN system of collective security from its origin and the scientific credential for its scholarship. The Cold War that it spawned restricted economic prosperity, political stability, and democratic freedom within its narrow core-area of the United States and Europe at the cost of its vast periphery in the Third World. Its unpredicted collapse extended insecurity across the entire globalised system, including its core-are as events since 9/11 forcefully underscores. While the new hegemonic system has become globally more insecure for all its citizens, its scholarship is still clueless about the collapse of the bipolar system it created in the midst of the massive confidence-building exercise to stabilize it.