When the Bush administration launched the War on Terror after the attacks of 9/11, Gothic responded through complex critiques of the discourses and the violence this entailed, but also by unapologetically energising the endeavour to maintain US global hegemony. Noting a number of geopolitical, economical and cultural similarities between late nineteenth-century Britain and the US at the turn of the millennium, this chapter observes that a dominant strand of American Gothic in the early twenty-first century is in fact effectively imperial. The chapter then discusses the interplay between what can thus be termed an ‘American Imperial Gothic’ and the post-9/11 period, paying particular attention to the ideological and affective work that Gothic performs. Located at the intersection between postcolonial and decolonial studies, and international relations and security studies, the chapter furthermore explores how a union of various entertainment corporations and government institutions is involved in the production and dissemination of often deeply reactionary Gothic texts. These rehearse racists and sexist tropes central to the neocolonial project, but also reveal how the anxieties always tied to vast imperial and capitalist projects rise to the surface during moments of sudden upheaval and transformation.