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Military Necessity

Military Necessity

Military Necessity

The Art, Morality and Law of War
Nobuo Hayashi, United Nations Interregional Crime and Justice Research Institute
April 2020
Available
Hardback
9781108484718
$170.00
USD
Hardback
USD
eBook

    What does it mean to say that international humanitarian law (IHL) strikes a realistic and meaningful balance between military necessity and humanity, and that the law therefore 'accounts for' military necessity? To what consequences does the law 'accounting for' military necessity give rise? Through real-life examples and careful analysis, this book challenges received wisdom on the subject by devising a new theory that not only reaffirms Kriegsräson's fallacy but also explains why IHL has no reason to restrict or prohibit militarily unnecessary conduct on that ground alone. Additionally, the theory hypothesises greater normative significance for humanitarian and chivalrous imperatives when they conflict with IHL rules. By combining international law, jurisprudence, military history, strategic studies, and moral philosophy, this book reveals how rational fighting relates to ethical fighting, how IHL incorporates contrasting values that shape its rules, and how law and theory adapt themselves to war's evolutions.

    • Illustrates points with real-life examples from historical and modern operations and offers an exhaustive account of today's leading cases
    • Combines methodologies of international law and jurisprudence with those of military history, strategy and ethics and demonstrates how various disciplines approach the subject and influence one another
    • Develops a new theory that adds fresh elements and contexts to long-standing debates and enables the reader to follow the arguments critically, formulate their own views, and locate where genuine disagreement emerges

    Reviews & endorsements

    ‘Military necessity is a notoriously difficult subject. It represents one side of the underlying principles of the law of armed conflict. Dr Hayashi engages in a nuanced discussion of the nature of the concept, and how it needs to be tempered by the principle of humanity that is its counterpoint. It is a work of great scholarship and a masterful approach to a deeply contentious area.’ Robert Cryer, University of Birmingham

    ‘Here, at last, our field gains a meticulous, comprehensive and novel examination of the law of war principle of military necessity. Dr Hayashi has delivered a supremely sophisticated and operationally informed study of the very heart of international regulation of the conduct of hostilities. This important text will be a commanding centrepiece of this subject and will inspire a generation of related scholarly commentary, juridical consideration and operational practice.’ Sean Watts, United States Military Academy at West Point, Lieber Institute for the Law of Land Warfare

    ‘During armed conflicts, acts of violence without military justification, as well as those that cause excessive collateral damage in relation to the expected military advantage, are prohibited by international humanitarian law. Military necessity is therefore at the heart of this law. Nobuo Hayashi has studied this essential question with such a depth of analysis and documentary richness that his book will certainly become indispensable for all those who apply, promote, teach, study and develop international humanitarian law.’ Yves Sandoz, University of Fribourg

    ‘Military necessity is an absolutely crucial, yet truly complex, concept with international humanitarian law and military ethics. How should we understand it? What trade-offs and dilemmas does it force us to face? And what do the law and actual cases tell us? Nobuo Hayashi gives us a detailed and authoritative overview that will be of great use not only to lawyers, but also to military practitioners and military ethicists.’ Henrik Syse, Peace Research Institute Oslo (PRIO), Bjørknes University College, and Chief Co-Editor of the Journal of Military Ethics

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    Product details

    April 2020
    Hardback
    9781108484718
    460 pages
    234 × 156 × 29 mm
    0.75kg
    2 tables
    Available

    Table of Contents

    • Part I:
    • 1. Introduction
    • Part II. Military Necessity in its Material Context:
    • 2. Fitness of means and vocational competence
    • 3. Objections and responses
    • Part III. Military Necessity in Its Normative Context:
    • 4. Military necessity and legitimacy modification
    • 5. Inevitable conflict thesis
    • 6. Joint satisfaction thesis I – alignment and indifference
    • 7. Joint satisfaction thesis II – accounting for the military necessity-humanity interplay in IHL norm-creation
    • Part IV. Military Necessity in its Juridical Context:
    • 8. Joint satisfaction thesis III – exclusionary and non-exclusionary effects
    • 9. Significance and content of juridical military necessity
    • 10. Military necessity and elements of crimes
    • Part V:
    • 11. Conclusion.
      Author
    • Nobuo Hayashi , United Nations Interregional Crime and Justice Research Institute

      Nobuo Hayashi is Visiting Lecturer at the United Nations Interregional Crime and Justice Research Institute. He has two decades of experience researching, publishing, and teaching, including practice at court where he authored submissions, advised prosecutors, and delivered expert presentations at academic and diplomatic conferences. Dr Hayashi specialises in the law of armed conflict, international criminal law and public international law. His most significant works cover military necessity, threat of force, and the law and ethics of nuclear weapons.