This book conceptualizes and examines theories of the 'Legal Pluriverse': the multiplicity of rules that regulate multinational missions and the diverse actors involved. The book sets out the various legal regimes, assesses how these rules interact, and exposes norm conflicts, areas of legal uncertainty, or ambiguous loopholes.

0: Robin Geiß, Heike Krieger, and Henning Lahmann: Introduction: The History of Contemporary Military Operations and Contemporary Legal Challenges Part I: The Application and Interoperability of the Laws of Armed Conflict to Multinational Military Operations 1: Katja Schöberl: Multinational Military Operations and the Geographical Scope of the Laws of Armed Conflict in Non-International Armed Conflict 2: Christian Schaller: The Temporal Scope of the Laws of Armed Conflict in Multinational Military Operations 3: Michael Newton: The Legal Interoperability of the Laws of Armed Conflict Part II: Laws of Armed Conflict and International Human Rights Law in the Context of Multinational Military Operations: A Matter of Perspective? 4: Hans Boddens Bodang: An Operational Perspective 5: Kenneth Watkin: A North American Perspective: The Overlap of the Laws of Armed Conflict and International Human Rights Law 6: Gentian Zyberi and Anna Andersson: A European Perspective on the International Human Rights and Humanitarian Law Relationship in the Context of Multinational Military Operations Part III: Laws of Armed Conflict and International Human Rights Law in the Context of Multinational Military Operations: Law Enforcement, Detention, Hostilities, and Precautions in Attack as Relevant Cases in Point 7: Hector Olásolo, Felipe Tenorio-Obando, Sergio Andrés Díaz, and Antonio Varón: Law Enforcement Activities in Peacekeeping and Multinational Military Operations: The Cases of Haiti and Afghanistan 8: Jacques Hartmann: Detention in the Context of Multinational Military Operations 9: Andreas von Arnauld: An Exercise in Defragmentation: The Grand Chamber Judgment in Hassan v UK 10: Yaël Ronen: International Human Rights Obligations in the Context of Extraterritorial Hostilities 11: Geoffrey Corn: The Invaluable Civilian Risk Mitigation Contribution of Recognizing the Value of Precautionary Measures 12: Tilmann Altwicker: European Partners in Multinational Military Operations - Extended Legal Restraints: The ECtHR's Rights-based Conception of Precautions in and against the Effects of Attacks Part IV: The Role of Pertinent Subfields of Public International Law in Relation to Multinational Military Operations 13: Pia Hesse: UN Security Council Resolutions as a Legal Framework for Multinational Military Operations 14: Dieter Fleck: The Coordinating and Steering Function of Status-of-Forces Agreements 15: Paulina Starski: Accountability and Multinational Military Operations 16: Onita Das: Protecting the Environment During Multinational Military Operations 17: Anna Petrig: Multinational Military Operations at Sea Part V: Complex Operational Environments: Diversity of Actors and Its Impact on the Legal Pluriverse Surrounding Multinational Military Operations 18: Aurel Sari: Receiving States, Sending States, and the Impact of Their Domestic Laws 19: Jochen Katze and Maral Kashgar: Legal Challenges in Multinational Military Operations: The Role of National Caveats 20: Hin-Yan Liu: The Involvement of Private Security Companies in Multinational Military Operations 21: Robert Frau: Asymmetric Actors in Asymmetric Conflicts 22: Andreas Müller: Human Rights Obligations of Armed Groups

Comprehensively maps the web of legal regimes applicable to multinational military missions Critically evaluates the ways in which different regimes, including human rights and environmental law, interact - highlighting areas of convergence and fragmentation Includes respected voices from practice as well as more theoretical contributions

Robin Geiß holds the Chair of International Law and Security at the University of Glasgow and is Co-Director of the Glasgow Centre for International Law and Security. A former Legal Adviser of the International Committee of the Red Cross (ICRC), Robin Geiß is also a faculty member of the Paris School of International Affairs (PSIA) at Sciences Po, Paris and editor of the Yearbook of International Humanitarian Law. Heike Krieger is Professor of Public Law and International Law at Freie Universität Berlin and Max Planck Fellow at the Max Planck Institute for Comparative Public Law and International Law in Heidelberg. She is Co-Chair of the Berlin Potsdam Research Group on "The International Rule of Law - Rise or Decline?" and editor of the Yearbook of International Humanitarian Law.

Comprehensively maps the web of legal regimes applicable to multinational military missions Critically evaluates the ways in which different regimes, including human rights and environmental law, interact - highlighting areas of convergence and fragmentation Includes respected voices from practice as well as more theoretical contributions