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In page Cluster munition:

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As of 1993, the US military was developing new cluster bombs that it claimed could have a much lower (less than 1%) dud rate.[6] Sensor-fused weapons that contain a limited number of submunitions that are capable of autonomously engaging armored targets may provide a viable, if costly, alternative to cluster munitions that will allow multiple target engagement with one shell or bomb while avoiding the civilian deaths and injuries consistently documented from the use of cluster munitions.[citation needed]