The rise of the US as a hegemonic power during the twentieth century first pursuing a liberal project of globalization under Clinton and then moving towards greater unilateralism after the election of George W. Bush, is comprehensively described in this much-needed study. Following the invasion of Iraq, the Bush administration became increasingly unpopular at home and abroad. America's power to impose its will declined and rivals were able to take advantage of its weakened state and pursue their own agendas with considerable success. This indispensable book looks at whether policy failure in Iraq and declining US soft and hard power mark the beginning of the end of US hegemony or whether the resilience of America's military and economic foundations will once again prove observers wrong.