Armed forces can be confronted with the problem of correctly classifying a targeted group as one that is or is not party to an armed conflict. In particular, this happens in a context of a high level of violence where a non-international armed conflict is (likely) occurring at the same time, such as in Iraq, Afghanistan, Brazil or Mexico. The difficulty of qualifying the targeted group leads to a legal uncertainty in which it is unclear whether an operation is governed by international humanitarian law or the international law of human rights. The problem is of particular interest when lethal force is resorted to, as killing might be illegal under one of the two branches. The book attempts to provide guidance on how this uncertainty can be overcome. In order to do so, the requirements to kill under IHL and human rights law are analyzed and compared, as well as assessed in concrete operations of the National Police of Colombia who face this problem on a regular basis.

This title examines the international lawfulness of state-sponsored targeted killings in military and police operations. Analysing recent state practice and jurisprudence, it establishes when targeted killing may be considered lawful, and what legal restraints are imposed on the practice in times of war and peace.

Ever since 9/11 the legal classification of transnational conflicts between states and non-state armed groups, such as Al Qaeda, has become a highly debated topic. While repeatedly referred to as the War on Terror, the legal qualification of the conflict between the US and Al Qaeda remains controversial: US military operations in Afghanistan against Al Qaeda and the use of drones against alleged terrorists in Pakistan, Yemen and other states pose the question as to whether this conflict truly qualifies as one single global war. Similarly, transnational conflicts such as the Colombian operation against a FARC base in Ecuador, Israel’s fight against Hezbollah in Lebanon, and Turkish operations against the PKK in northern Iraq pose difficulties as they transcend individual nations˙ political systems and geographical borders. Whether the law of war (i.e. humanitarian law) is applicable to such conflicts and to what extent human rights law binds the states involved is debated. This work aims to provide structure to the current debate and analyzes the applicability of both humanitarian law and human rights law. Furthermore, it examines and explores approaches to enhance and develop the existing legal framework, including proposed new legal regimes for transnational conflicts. The author argues against the strict separation of international humanitarian law and human rights law and instead borrows from Colombian authorities’ experience in their struggle with the FARC to develop an alternate solution, combining both legal regimes in an integrated approach.

The book rethinks the means of harmonization of prima facie norm conflicts in light of the multitude of international agreements across regimes. The methodology deployed in this book, which is referred to as complementation or complementary application, represents a novel approach by focusing on commonly shared objectives and a unifying ordre public transnational across fields of public international law that allow for a harmonization beyond traditional treaty interpretation. Fields of public international law, mainly the laws of armed conflict, international environmental law, and human rights law, apply simultaneously to questions regarding the environment and war. Such a coexistence challenges the unity of the international legal order, and it also challenges the means of harmonization across fields of public international law. However, eventually, the co-existence of several fields of public international law can result in a refinement of international law and enhanced legal protection. Diversification can also contribute to clarification or normative intensification in areas of parallel application of various fields and multilayered legal protection, demonstrating a counter-option to fragmentation.

Cyber weapons and cyber warfare have become one of the most dangerous innovations of recent years, and a significant threat to national security. Cyber weapons can imperil economic, political, and military systems by a single act, or by multifaceted orders of effect, with wide-ranging potential consequences. Unlike past forms of warfare circumscribed by centuries of just war tradition and Law of Armed Conflict prohibitions, cyber warfare occupies a particularly ambiguous status in the conventions of the laws of war. Furthermore, cyber attacks put immense pressure on conventional notions of sovereignty, and the moral and legal doctrines that were developed to regulate them. This book, written by an unrivalled set of experts, assists in proactively addressing the ethical and legal issues that surround cyber warfare by considering, first, whether the Laws of Armed Conflict apply to cyberspace just as they do to traditional warfare, and second, the ethical position of cyber warfare against the background of our generally recognized moral traditions in armed conflict. The book explores these moral and legal issues in three categories. First, it addresses foundational questions regarding cyber attacks. What are they and what does it mean to talk about a cyber war? The book presents alternative views concerning whether the laws of war should apply, or whether transnational criminal law or some other peacetime framework is more appropriate, or if there is a tipping point that enables the laws of war to be used. Secondly, it examines the key principles of jus in bello to determine how they might be applied to cyber-conflicts, in particular those of proportionality and necessity. It also investigates the distinction between civilian and combatant in this context, and studies the level of causation necessary to elicit a response, looking at the notion of a 'proximate cause'. Finally, it analyses the specific operational realities implicated by particular regulatory regimes. This book is unmissable reading for anyone interested in the impact of cyber warfare on international law and the laws of war.