National security risk registers capture a large number of potential threats to societies. So should any review of national security or national defence. The impacts of these risks are often more severe than predicted, and we are due a few more (according to pattern analysis over the history of the planet). Professor Peter Frankopan, global best-selling author and world renowned historian, talks through some of the big issues that should be on the agenda of any threat-based national security review including food, health, fuel, water, and raw materials.

The UK has a sound record of identifying these threats - even if successsive governments are poor at preparing for them. It is somewhat puzzling that any review of national security, like the one that the UK is currently undertaking, should be focused solely on military, geopolitical and technology risks and not those that might prove a much greater challenge to the safety and security of the state.