Legality of the use of cluster bombs in international law: a short overview

Abstract

The war in Ukraine brought the collective security system towards a dead-end street. After raising the question of nuclear threat, another long-time forgotten question arises again, waking up the ghosts that slept for more than a half-century- the use of cluster bombs. Although an international convention prohibits this type of weapon, neither Ukraine, Russia, nor the United States are part of it, which leads back to the agony of fragmentation of international law versus the erga omnes concept of universally applicable norms and customary rules. Since the war is official and intensive, the law of armed conflict applies no matter which of the states involved denies it or names it differently. The use of cluster munitions from both sides is highly contested in international law - the paper aimed to provide an overview of the applicable legal framework through analytical and comparative methods. Although there is a general notion that cluster munition is banned under international law, the paper's results show this is not the ultimate case. Contextualisation relies on the four basic principles of humanitarian law.