NORAD’s binational command is unique, and this timely and ambitious book examines its continued relevance to North American defense against a host of new global threats. It broadens the focus of what we mean by North American defense, contemplates how we might include Mexico in various regional security arrangements, and considers the dynamics of expanded North American interdependence in the Trump era. is an important book. This edited volume brings together a galaxy of stars, both rising and established, with outstanding credentials regarding NORAD and associated matter in the study of security. This original and well-written volume is the first of its kind since the Cold War – long overdue and impressive in contents. The chapters cover both panoramic issues and more specific matters, and the collection is essential reading for academics, policy-makers and the general public.