Part I. Expert Manuals.- Chapter 1. Law of Armed Conflicts Manuals.- Chapter 2. A Room Full of Experts: Expert Manuals and Their Influence on the Development of International Law.- Chapter 3. The Leuven Manual on the International Law Applicable to Peace Operations: An Ambitious Sui Generis Expert Panel Manual with Time on Its Side?.- Part II. Other Articles.- Chapter 4. Examining a Norm of Customary International Law that Criminalises the Intentional Use of Starvation of the Civilian Population as a Method of Warfare.- Chapter 5. Does International Law Permit the Provision of Humanitarian Assistance Without Host State Consent? Territorial Integrity, Necessity and the Determinative Function of the General Assembly.- Chapter 6. Article 36: Review of AI Decision-Support Systems and Other Emerging Technologies of Warfare.- Part III. Year in Review.- Chapter 7. Year in Review 2020.- Table of Cases.- Index.