Since 1945 the United States has been the world’s dominant power. Even during the Cold War its economy was far more advanced than, and more than twice as large as, that of the Soviet Union, while its military capability and technological sophistication were much superior. Following the Second World War, the US was the prime mover in the creation of a range of multinational and global institutions, such as the United Nations, the International Monetary Fund and NATO, which were testament to its new-found global power and authority. The collapse of the Soviet Union in 1991 greatly enhanced America’s pre-eminent position, eliminating its main adversary and resulting in the territories and countries of the former Soviet bloc opening their markets and turning in many cases to the US for aid and support.
