Abstract
Starting from a neorealist emphasis on structural constraints and incenives, this chapter explores the complex links between the US unipolar world order and China’s Rise and discusses how US-China relations are likely to develop in a post-US unipolar world order. The key aim is demonstrating how the “assertive turn” in Chinese foreign and security policy and the intensifying US-China great power rivalry are unavoidable consequences of weakening US unipolarity.