The Prologue is a thought-provoking read. Through his well-sourced and researched analysis, Mirtchev helps introduce readers to alternative energy and how it will shape global relations in the future. Whether addressing the role of energy policy and how countries can collaborate on alternative energy methods or energy will shape future national security issues, the content in this work is relevant to day-to-day policymaking. Both fossil fuels and alternative energy are here to stay, and politicians, policymakers, and practitioners are trying to understand their role in economics and national security matters. The Prologue does a great job of comprehensively explaining what kind of impact fossil fuels and alternative energy will have in the age of great power competition.