States condemn cluster munitions because they disperse submunitions across wide areas and leave unexploded ordnance that can kill civilians long after a strike.
Debate accelerated during the Soviet invasion of Afghanistan when the Red Army used cluster munitions extensively. Observers documented civilian harm and criticized the practice, but governments did not pursue sustained legal consequences. Officials treated the issue as part of a broader geopolitical conflict, rather than as a discrete legal violation. The 1997 award of the Nobel Peace Prize to the International Campaign to Ban Landmines broadened diplomatic momentum that culminated in the 2008 Convention on Cluster Munitions to prohibit their use, production, and transfer among signatories. The treaty reflects a humanitarian consensus, but it does not bind many major military powers, and it relies on political will rather than automatic enforcement.
In 2023, Washington approved the transfer of cluster munitions to Ukraine, despite longstanding criticism of the weapon
Hypocrisy predominates. During the 2006 Israel-Hezbollah War, scattered reports alleging Israel’s use of cluster munitions generated sustained criticism but, during the same conflict, Hezbollah’s launch of cluster rockets into northern Israel that dispersed submunitions across civilian areas, an episode even Human Rights Watch documented, did not bring comparable diplomatic pressure or condemnation.
Cluster munitions did not disappear after 2008. In Syria, government forces used cluster munitions repeatedly during the civil war and struck populated areas with weapons that left unexploded bomblets across cities and villages. In Yemen, the Saudi-led coalition used cluster munitions in operations against Houthi forces and drew criticism from humanitarian organizations.
The United States has also confronted this issue. In 2023, Washington approved the transfer of cluster munitions to Ukraine, despite longstanding criticism of the weapon. U.S. officials justified the decision by citing Ukraine’s need to counter entrenched Russian positions and to compensate for artillery shortages. The decision drew criticism from some allies and humanitarian groups, but it did not produce the same level of sustained diplomatic pressure or institutional response seen in other cases. This episode underscores a broader pattern: Governments apply legal and moral standards flexibly when strategic interests are at stake.
The war in Ukraine has produced the most sustained international focus on cluster munitions since the treaty’s adoption. Reports of Russian use triggered immediate condemnation, extensive media coverage, and calls for investigation. Governments treated these incidents as central evidence in assessing violations of the laws of war.
Similar allegations involving attacks on Israeli territory have not produced the same level of sustained attention. Reports indicate that Hezbollah has used cluster munitions in past conflicts and may have employed similar weapons more recently. Additional reporting indicates that Iranian-backed forces have deployed cluster-type munitions in attacks affecting Israeli civilian areas. These incidents raise the same legal concerns identified in Ukraine, yet governments and institutions have not applied comparable scrutiny.
International humanitarian law applies the same principles—distinction, proportionality, and the prohibition of indiscriminate attacks—to all actors. The Convention on Cluster Munitions codified those principles for its signatories, but many states, including major powers and regional actors, did not join it. Governments enforce these standards selectively and allow political alignment to shape outcomes.
When governments enforce legal standards selectively, they weaken deterrence. Actors observe uneven responses and adjust their expectations.
Institutional structure reinforces this outcome as The International Criminal Court does not operate as a universal enforcer. Jurisdiction depends on treaty membership, referrals, and political decisions, while prosecutors cannot act without jurisdiction, and governments determine whether cases proceed. These limits ensure that enforcement follows political pathways.
Media coverage and institutional priorities also shape response. Sustained reporting drives diplomatic pressure and legal attention. Ukraine remains at the center of global media focus, which amplifies scrutiny of weapons use. Other conflicts receive less continuous attention, which reduces institutional urgency.
This disparity has drawn criticism that institutions apply standards unevenly when Israel or Israeli civilians become the victims of attacks. Critics point to the limited attention given to Hezbollah’s use of cluster munitions compared to the sustained focus on other conflicts. Regardless of explanation, institutions do not apply legal standards uniformly across cases.
This inconsistency carries consequences. When governments enforce legal standards selectively, they weaken deterrence. Actors observe uneven responses and adjust their expectations. If one use of cluster munitions triggers investigation and condemnation while another does not, the perceived cost of violation declines.
International law depends on consistent application. Until states apply these standards without regard to political alignment, enforcement will remain contingent on politics rather than law. That inconsistency undermines both accountability and deterrence.
