This book, Climate Security and the Military: Concepts, Strategies and Partnerships, reviews the climate Security Nexus from the military angle and proposes the design of climate security strategies and how they can contribute to adaptation to and mitigation of the related challenges. Part 1 reviews the understanding of the Climate Security Nexus. Subsequently, Part 2 assesses the potential design of climate security strategies. In Part 3, adaptation to climate change by the military is reviewed. Finally, part 4 discusses the potential contribution of the military to climate mitigation from the angle of operations on land, at sea and in the air, and of solar geoengineering. By thus analysing the impact climate has on security around the world and military operations, this book provides a unique and much needed view on the mutual influence of climate security and the military and provides suggestions to adapt to and mitigate the resulting challenges.