Part I. Expert Manuals1. Law of Armed Conflict Manuals2. A Room Full of Experts: Expert Manuals and Their Influence on the Development of International Law3. 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 Articles4. Examining a Norm of Customary International Law that Criminalises the Intentional Use of Starvation of the Civilian Population as a Method of Warfare5. Does International Law Permit the Provision of Humanitarian Assistance Without Host State Consent? Territorial Integrity, Necessity and the Determinative Function of the General Assembly6. Article 36: Review of AI Decision-Support Systems and Other Emerging Technologies of WarfarePart III. Year in Review7. Year in Review 2020