This book investigates the hegemony of the USA by examining the Obama, Trump and Biden administrations’ responses to major global crises. Combining a Gramscian framework with the main features of complexity theory it provides a comprehensive account of the systemic crisis of the hegemonic order of the United States in security, environmental, and economic issue-areas. By examining key case studies, the author reveals that the hegemonic responses of the US were confronted by overt challenges, including emerging state and non-state actors, globally complex transnational flows, and a combative...