Kissinger focuses on inter-state relations – on how, from one country’s perspective, to avoid war with other countries while deterring them from aggression or other actions likely to upset a regional or global balance of power. Yet a glance at today’s headlines suggests that what is most likely to kill and displace millions, if not hundreds of millions, of people in the coming decades are global threats such as pandemics, climate change, and terrorist and criminal networks – not inter-state war.