GC IV Commentary Series – Introduction

Editors’ note: Sean Watts, co-author of this post, served on the Reading Committee that advised production of the ICRC’s Commentary on the Fourth Geneva Convention and co-authored two entries in it.

Recent decades have produced a deluge of private and public-sector law-of-war commentary. Exhaustive academic articles and books, sweeping non-governmental and international organizations’ reports, lengthy tribunal judgments, and comprehensive expert manuals now flood inboxes, reading lists, and literature reviews. Meanwhile international law blogs post feverishly (ahem …) and challenge even the most dedicated readers and practitioners to keep up.

Directly or indirectly, the Geneva-based legal branches of the International Committee of the Red Cross (ICRC) have contributed substantially to and inspired much of this tidal wave of opinion and analysis. They have devoted unrivaled resources to producing, hosting, and supporting work to understand, disseminate, and especially to elaborate and develop the law of war to achieve humanitarian ends. The centerpiece of that endeavor has been their project to update Dr. Jean Pictet’s original commentaries on the four Geneva Conventions of 1949. Few, if any, other law-of-war publication efforts rival their scale, scope, or ambition.

Announced in the ICRC’s International Review of the Red Cross in 2012, the project published its Commentary on the First Geneva Convention in 2016. The following year it published a Commentary on the Second Geneva Convention. And in 2021, the ICRC published its Commentary on the Third Geneva Convention. Each has already assumed an influential place in law-of-war scholarship, provoking generally admiring praise, supportive citations, but also critical analysis.

A year ago, in October 2025, the ICRC published its updated Commentary on the Fourth Geneva Convention. It is currently available alongside their electronic reproduction of the Fourth Geneva Convention and will soon be published in print. After its launch, the ICRC organized an online series highlighting its Commentary, which concluded earlier this year. Although kindly invited to participate in that series, Articles of War saw an opportunity for an independently organized and edited complementary series, offering an additional perspective and valuable contribution to the law-of-war community.

With the Conventions advancing in age, contemporary interpretation has taken on growing significance. In that context, this series is intended to add perspectives on the Fourth Geneva Convention of 1949 to the initiative sparked by the ICRC’s renewed Commentary. Our goal is to give further interpretive support to those teaching, applying, and researching the law of armed conflict, particularly to the cadets at Articles of War’s home institution, the United States Military Academy at West Point. We intend to combine these views to bring the ICRC’s views to our readers’ attention while adding the insights of our contributors.

Our series will therefore approach the Commentary at a relatively fine-grained level. To date, coverage has tended to offer general or sweeping assessments of the ICRC’s revised interpretations and their overall importance. Our series will deeply consider smaller segments or even excerpts of the 2025 Commentary. We hope this approach both showcases our contributors’ expertise and experience with discrete subjects and proves useful to instruction, scholarship, and to practitioners applying the Convention and the Commentary. We also hope the series will inspire long-form scholarship that delves at greater length into specific interpretive issues raised by the new Commentary and the Fourth Convention itself.

We have made open-ended invitations to our contributors to inquire into the 2025 Commentary with no projected end date. A first round of invitations has already produced over a dozen posts, spread across the Convention’s provisions. To guide contributors, we offered a set of analytical prompts designed to support careful, constructive engagement with the 2025 Commentary:

– How does the updated comment compare to prior coverage of the subject in Jean Pictet’s 1958 Commentary?

– What is the comment’s likely impact on its subject or its utility to application of the Convention?

– Does the comment reveal any specific methodological or interpretive choices or patterns?

– Does the comment acknowledge views contrary to its conclusions?

– Does the comment reflect continuity with or departure from the Convention’s travaux préparatoires?

– How does the comment approach ambiguities in the treaty text? Does it work to resolve them or concede and leave them in place?

– What sources are cited or seem to have had greatest influence on the comment? For instance, does the comment rely on and align with States’ military legal doctrine on the subject; to what extent does it rely on academic or the ICRC’s own publications for its conclusions?

– What, if anything, does close examination of the comment’s cited sources themselves reveal?

The approaches our contributors have chosen range from examining the theoretical underpinnings of interpreting the law of war as part of public international law to the specific application of a single rule of the Convention. Their posts inquire into issues that have received comparatively high scholarly attention, like the threshold for non-international armed conflict, to those that have been widely overlooked, like the taxation of humanitarian relief. Over the coming weeks, we will publish two posts per week on the 2025 Commentary, every Wednesday and Friday. To keep the series dynamic, posts will not follow a fixed thematic order; successive contributions will often address entirely separate topics.

We envision several further rounds of invitations with the goal of producing a thorough consideration of the 2025 Commentary from a wide range of perspectives. We hope the series provides our readers a helpful new lens on this already influential resource. We kindly remind readers that Articles of War does not publish “response” or “rejoinder” posts. We prefer freestanding work that advances its own views and instead highlights competing perspectives only to support its arguments. Readers with their own reflections of this sort on the Commentary are encouraged to submit their work for consideration.

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Rosa-Lena Lauterbach is a PhD Candidate at the University of Cologne and a former Visiting Researcher at the Lieber Institute and Columbia Law School and a thematic editor for Articles of War.

Liisi Adamson is the Managing Editor of Articles of War.

Sean Watts is a Professor in the Department of Law and Philosophy at the United States Military Academy, Co-Director of the Lieber Institute for Law and Warfare at West Point, and Co-Editor-in-Chief of Articles of War.

The views expressed are those of the authors, and do not necessarily reflect the official position of the United States Military Academy, Department of the Army, or Department of Defense.

Articles of War is a forum for professionals to share opinions and cultivate ideas. Articles of War does not screen articles to fit a particular editorial agenda, nor endorse or advocate material that is published.

Photo credit: U.S. Army, Army Spc. Nathan Starr