This book examines the key dimensions of 21st century war, and shows that orthodox thinking about war, particularly what it is and how it is fought, needs to be updated. Accelerating societal, economic, political and technological change affects how we prepare, equip and organise for war, as well as how we conduct war - both in its low-tech and high-tech forms, and whether it is with high intensity or low intensity. The volume examines changes in warfare by investigating the key features of the conduct of war during the first decades of the 21st century. Conceptually centred around the terms 'kinetic', 'connected' and 'synthetic', the analysis delves into a wide range of topics. The contributions discuss hybrid warfare, cyber and influence activities, machine learning and artificial intelligence, the use of armed drones and air power, the implications of the counterinsurgency experiences in Iraq, Afghanistan and Syria, as well as the consequences for law(fare) and decision making. This work will be of much interest to students of military and strategic studies, security studies and International Relations. Chapters 1, 2, 5, and 19 of this book are freely available as a downloadable Open Access PDF under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license available at https://www.routledge.com/The-Conduct-of-War-in-the-21st-Century-Kinetic-Connected-and-Synthetic/Johnson-Kitzen-Sweijs/p/book/9780367515249

This open access volume surveys the state of the field to examine whether a fifth wave of deterrence theory is emerging. Bringing together insights from world-leading experts from three continents, the volume identifies the most pressing strategic challenges, frames theoretical concepts, and describes new strategies. The use and utility of deterrence in today's strategic environment is a topic of paramount concern to scholars, strategists and policymakers. Ours is a period of considerable strategic turbulence, which in recent years has featured a renewed emphasis on nuclear weapons used in defence postures across different theatres; a dramatic growth in the scale of military cyber capabilities and the frequency with which these are used; and rapid technological progress including the proliferation of long-range strike and unmanned systems. These military-strategic developments occur in a polarized international system, where cooperation between leading powers on arms control regimes is breaking down, states widely make use of hybrid conflict strategies, and the number of internationalized intrastate proxy conflicts has quintupled over the past two decades. Contemporary conflict actors exploit a wider gamut of coercive instruments, which they apply across a wider range of domains. The prevalence of multi-domain coercion across but also beyond traditional dimensions of armed conflict raises an important question: what does effective deterrence look like in the 21st century? Answering that question requires a re-appraisal of key theoretical concepts and dominant strategies of Western and non-Western actors in order to assess how they hold up in today's world. Air Commodore Professor Dr. Frans Osinga is the Chair of the War Studies Department of the Netherlands Defence Academy and the Special Chair in War Studies at the University Leiden. Dr. Tim Sweijs is the Director of Research at The Hague Centre for Strategic Studies and a Research Fellow at the Faculty of Military Sciences of the Netherlands Defence Academy in Breda.

University of Southern Denmark, Denmark Ultimata feature as a core concept in the coercive diplomacy scholarship. Conventional wisdom holds that pursuing an ultimatum strategy is risky. This book shows that the conventional wisdom is wrong on the basis of a new dataset of 87 ultimata issued from 1920–2020. It provides a historical examination of ultimata in Western strategic, political, and legal thought since antiquity until the present, and offers a four-pronged typology that explains their various purposes and effects: 1) the dictate, 2) the conditional war declaration, 3) the bluff, and 4) the brinkmanship ultimatum. The book yields a better understanding of interstate threat behaviour at a time of surging competition. Background materials can be consulted at www.coercivediplomacy.com.

This book examines the key dimensions of 21st century war, and shows that orthodox thinking about war, particularly what it is and how it is fought, needs to be updated. Accelerating societal, economic, political and technological change affects how we prepare, equip and organise for war, as well as how we conduct war - both in its low-tech and high-tech forms, and whether it is with high intensity or low intensity. The volume examines changes in warfare by investigating the key features of the conduct of war during the first decades of the 21st century. Conceptually centred around the terms 'kinetic', 'connected' and 'synthetic', the analysis delves into a wide range of topics. The contributions discuss hybrid warfare, cyber and influence activities, machine learning and artificial intelligence, the use of armed drones and air power, the implications of the counterinsurgency experiences in Iraq, Afghanistan and Syria, as well as the consequences for law(fare) and decision making. This work will be of much interest to students of military and strategic studies, security studies and International Relations. Chapters 1, 2, 5, and 19 of this book are freely available as a downloadable Open Access PDF under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license available at https://www.routledge.com/The-Conduct-of-War-in-the-21st-Century-Kinetic-Connected-and-Synthetic/Johnson-Kitzen-Sweijs/p/book/9780367515249