A security measure designed to neutralize threats from an enemy

party, internment is common in warfare. In the context of internment

operations in Afghanistan, Iraq, Guantanamo Bay and the Democratic Republic of the Congo,

and of increasing international military intervention in internal conflicts more generally, the legal

framework for internment has been widely criticised for being at best ambiguous and full of

loopholes, at worst out-dated and inadequate.

In light of such criticism, this book examines the continued relevance and adequacy of the

existing legal framework, identifies its shortcomings and proposes possible avenues to

remedy them. It offers answers to fundamental questions such as who may be lawfully interned

in armed conflict, on what legal basis, for what reasons and for how long. Starting from the

premise that internment in armed conflict cannot be lawful under one branch of international

law while at the same time unlawful under another, the book offers a fresh view of the

interaction between the simultaneously applicable norms of international humanitarian and

human rights law. Applying this approach to a comprehensive analysis of relevant normative

texts, international and national case-law and actual battlefield practice of the 20th and 21st

century, the book not only answers the questions it raises but also offers a novel perspective

on related issues such as the personal scope of application of the Third and Fourth Geneva

Conventions, the influence of international human rights law on the interpretation of

international humanitarian law and whether States need to derogate from the first in order to

rely on the latter.

Reaffirming the adequacy of the legal framework for internment in international armed

conflict and occupation, the author nevertheless demonstrates the importance of interpreting

that framework in conformity with subsequent developments in international law and actual

practice. She lays bare significant challenges in non-international armed conflict, such as the

lack of a legal basis to intern in international humanitarian law and the serious risks involved

in solutions proposed so far to remedy that gap. Indeed, sole reliance on international human

rights law, domestic law or, alternatively, on the rules on targeting are unsatisfactory and inappropriate.

Heeding calls for the clarification and modernization of the existing legal

framework for internment in armed conflict, the author puts forward concrete proposals for

normative developments that seek to reconcile both the practical realities of contemporary

armed conflict and significant developments in international law that affirm liberty as one of

the most fundamental rights owed to any human being.