In the prelude to the NATO summit in London commemorating the 70th anniversary of the founding of the alliance, discussions were overshadowed by a now-infamous Economist interview with French President Emmanuel Macron. In the interview, the French President claimed that NATO is experiencing a “brain death” – a ‘mort cérébrale’ resulting from a lack of institutional capacity to prevent, mitigate, or effectively respond to unilateral action from individual allies which could be disruptive to the alliance’s agenda. President Macron’s remarks precipitated a debate concerning NATO’s relevance (or irrelevance) in the post-Cold War international system, its (potentially failing) adaptation to new security and strategic circumstances, and the constraints imposed by NATO’s seeming lack of institutionalisation and ability to prevent unilateral action …