Terrorism As An Undefined Legal Concept: The Struggle For Consensus In International Law
Devesh Kumar, Himachal Pradesh National Law University, Shimla
ABSTRACT
Terrorism remains one of the most intensely debated and controversial subjects in international law, despite its frequent appearance in political speeches, legal discussions, and security strategies. This article explores the reasons why an agreed-upon legal definition of terrorism is still missing from international law and explains the complex challenges that have made such an agreement so elusive. It traces the evolution of the concept of terrorism from its origins during the French Revolution, where the term described state violence and political purges, to its modern association with non-state groups, acts of political violence, radical ideologies, and threats to global security. More recently, terrorism has come to symbolise unpredictable violence targeting civilians, governments, or symbols of authority, often designed to instil fear and achieve political, religious, or ideological aims. The article carefully distinguishes terrorism from related phenomena such as violent extremism, guerrilla warfare, resistance movements, and ordinary criminal acts. It highlights the legal and practical difficulties in identifying not only what constitutes a terrorist act, but also in determining who should be labelled a terrorist. These challenges are compounded by the fact that the same act may be seen as terrorism by some and as legitimate resistance or struggle for freedom by others, depending on perspective, context, and political interests. The article examines how a patchwork of international treaties, United Nations resolutions, national laws, and global institutions has produced a wide range of legal approaches to terrorism, often leading to inconsistency and confusion. Special attention is given to the reasons behind the world’s failure to adopt a single, comprehensive convention on terrorism. Political disagreements, deep concerns about national sovereignty, and the persistent debate over the line between ‘Terrorist’ and ‘Freedom fighter’ all play central roles in blocking consensus. The article explains how overly broad definitions of terrorism can be misused by authorities, resulting in over-criminalisation, human rights violations, and the suppression of legitimate dissent. Conversely, definitions that are too narrow may undermine international cooperation, weaken accountability, and allow dangerous acts to go unpunished. Ultimately, the article argues that defining terrorism is not just a technical or legal issue, but a complex struggle involving law, political power, national interests, and the search for
legitimacy on the global stage.
Keywords: Terrorism, International Law, Legal Definition, United Nations, Counterterrorism, State Sovereignty, Political Violence, Human Rights
