Douglas Guilfoyle is a Professor of International Law and Security at UNSW Canberra and an Australian Research Council Future Fellow (2022-2025), leading a project on legal statecraft and the law of the sea. His research spans maritime security, the law of the sea, international criminal law, and naval warfare. He is a Distinguished Visiting Fellow at the IMO International Maritime Law Institute and an editor of the OUP series Elements of International Law. His career includes appointments at University College London and Monash University, and fellowships at West Point, the Australian Department of Foreign Affairs and Trade, and the British Academy.Jennifer Maddocks is a Lecturer in International and Operational Law at the University of Reading School of Law. She was previously an Assistant Professor in the Department of Law and Philosophy at the United States Military Academy, West Point, a Faculty Fellow with the Lieber Institute for Law and Warfare, and Managing Editor for theLieber Institute's electronic publication Articles of War. Prior to joining West Point, Dr. Maddocks served for more than thirteen years as an officer in the British Army Legal Services, gaining considerable operational experience including deployments to Iraq and Afghanistan.

• ForewordRear Admiral Mathew Williams, MNZMIntroduction Douglas Guilfoyle and Jennifer MaddocksPART I: Overarching Challenges in Contemporary Conflict1. Large Scale Combat Operations in the Indo-Pacific - Practical Implications for International Law J.J. Merriam2. Reducing the Human Cost of Large-Scale Military Operations Abby Zeith and Lakmini Seneviratne3. Applying the Law of Neutrality in an Indo-Pacific Armed Conflict Raul (Pete) PedrozoPART II: Legal Challenges in Multi-Domain Operations4. Interpretative Choice and Risk in Indo-Pacific Air Domain Challenges Angeline Lewis5. Key Legal Issues in Multi-Domain Operations in the Indo-Pacific: The Space Domain Theodore T. Richard6. Key Legal Issues in Multi-Domain Operations in the Indo-Pacific: The Cyber Domain Lauren M. Cherry7. Calling Up (And Creating) Auxiliaries: The Use of Merchant Ships for Transport and Logistics Rob McLaughlin8. The Protection of Submarine Cables and Pipelines in Armed Conflict in the Indo-Pacific Atsuko Kanehara9. Winning the Information War: The Law of Armed Conflict and Public Opinion in the Indo-Pacific Aurel SariPART III: Alliances, Partnerships, and Capability Development10. Mutual Defense Treaties and Defense Groupings in the Indo-Pacific Region: An Introduction Erika de Wet11. The Enhanced Defense Cooperation Agreement in Context: The Perspective from the Philippines Jay L. Batongbacal12. AUKUS and Nuclear Submarines: Regional and NPT Implications Monique Cormier13. AUKUS Pillar 2: Legal Implications of Sharing Advanced Technology Natalia JevglevskajaPART IV: Case Study: Conflict on Taiwan14. The Status of Taiwan and its Right to Collective Self-Defense Peter A. Dutton15. Taiwan's Statehood and the Right of Collective Self-Defense: A Taiwanese Perspective Anne Hsiu-An Hsiao16. Application of the Geneva Conventions and POW Status in a Conflict in Taiwan Emily Crawford17. Weak Legal Guardrails: The United States and the Use of Nuclear Weapons in Great Power Conflict in the Indo-Pacific Brian FinucaneIndex

Douglas Guilfoyle is a Professor of International Law and Security at UNSW Canberra and an Australian Research Council Future Fellow (2022-2025), leading a project on legal statecraft and the law of the sea. His research spans maritime security, the law of the sea, international criminal law, and naval warfare. He is a Distinguished Visiting Fellow at the IMO International Maritime Law Institute and an editor of the OUP series Elements of International Law. His career includes appointments at University College London and Monash University, and fellowships at West Point, the Australian Department of Foreign Affairs and Trade, and the British Academy.Jennifer Maddocks is a Lecturer in International and Operational Law at the University of Reading School of Law. She was previously an Assistant Professor in the Department of Law and Philosophy at the United States Military Academy, West Point, a Faculty Fellow with the Lieber Institute for Law and Warfare, and Managing Editor for theLieber Institute's electronic publication Articles of War. Prior to joining West Point, Dr. Maddocks served for more than thirteen years as an officer in the British Army Legal Services, gaining considerable operational experience including deployments to Iraq and Afghanistan.

• ForewordRear Admiral Mathew Williams, MNZMIntroduction Douglas Guilfoyle and Jennifer MaddocksPART I: Overarching Challenges in Contemporary Conflict1. Large Scale Combat Operations in the Indo-Pacific - Practical Implications for International Law J.J. Merriam2. Reducing the Human Cost of Large-Scale Military Operations Abby Zeith and Lakmini Seneviratne3. Applying the Law of Neutrality in an Indo-Pacific Armed Conflict Raul (Pete) PedrozoPART II: Legal Challenges in Multi-Domain Operations4. Interpretative Choice and Risk in Indo-Pacific Air Domain Challenges Angeline Lewis5. Key Legal Issues in Multi-Domain Operations in the Indo-Pacific: The Space Domain Theodore T. Richard6. Key Legal Issues in Multi-Domain Operations in the Indo-Pacific: The Cyber Domain Lauren M. Cherry7. Calling Up (And Creating) Auxiliaries: The Use of Merchant Ships for Transport and Logistics Rob McLaughlin8. The Protection of Submarine Cables and Pipelines in Armed Conflict in the Indo-Pacific Atsuko Kanehara9. Winning the Information War: The Law of Armed Conflict and Public Opinion in the Indo-Pacific Aurel SariPART III: Alliances, Partnerships, and Capability Development10. Mutual Defense Treaties and Defense Groupings in the Indo-Pacific Region: An Introduction Erika de Wet11. The Enhanced Defense Cooperation Agreement in Context: The Perspective from the Philippines Jay L. Batongbacal12. AUKUS and Nuclear Submarines: Regional and NPT Implications Monique Cormier13. AUKUS Pillar 2: Legal Implications of Sharing Advanced Technology Natalia JevglevskajaPART IV: Case Study: Conflict on Taiwan14. The Status of Taiwan and its Right to Collective Self-Defense Peter A. Dutton15. Taiwan's Statehood and the Right of Collective Self-Defense: A Taiwanese Perspective Anne Hsiu-An Hsiao16. Application of the Geneva Conventions and POW Status in a Conflict in Taiwan Emily Crawford17. Weak Legal Guardrails: The United States and the Use of Nuclear Weapons in Great Power Conflict in the Indo-Pacific Brian FinucaneIndex