This book investigates the intellectual origins of Britain's decision to participate in the 2003 Iraq War, arguing that the conflict was driven by flawed, dogmatically held ideas rather than mere intelligence failures. Patrick Porter, a scholar of international security, utilizes a significant body of recently declassified primary documents to challenge conventional narratives that focus solely on individual leadership flaws or faulty intelligence. He posits that the war was sustained by three specific intellectual pillars: the belief in the existence of undeterrable rogue states, the conviction that Western security requires the forced remaking of foreign states, and the strategic conceit that military participation in U.S.-led conflicts guarantees British influence in Washington.

Experts recognize this work as a significant contribution to the historiography of the Iraq War, particularly for its focus on the ideological drivers of policy. Readers frequently note the academic density of the prose and the author's rigorous use of primary source documentation to support his arguments.