The primary legal instrument governing these weapons is the Convention on Cluster Munitions (CCM), adopted in 2008. This treaty creates an absolute ban on the use, production, stockpiling, and transfer of cluster munitions. Countries that sign the CCM agree that the wide-area effects and unexploded submunitions make these weapons incompatible with international humanitarian law.

However, not all major military powers have signed the treaty. For nations outside this specific framework, international humanitarian law (IHL) serves as the fallback mechanism. This legal regime does not ban the weapons outright but imposes strict rules. It prohibits indiscriminate attacks and requires military commanders to take every precaution to minimize civilian injury. If a strike hits a populated area where the risk to non-combatants is high, the use of cluster munitions can constitute a war crime under the Geneva Conventions.

Diplomatically, humanitarian organizations focus on