The new PrSM munition is believed to have been used in a strike on an Iranian school, prompting concerns over potential design flaws

The American military depleted its entire stock of untested Precision Strike Missiles (PrSM) early in its attack on Iran last month, a US Army official has said.

The short-to-medium ballistic missiles developed by Lockheed Martin are slated to replace the aging Army Tactical Missile System (ATACMS). The new weapon completed its prototype phase only last year, and ended up being fielded without a full testing cycle. Media reports indicated that the new missiles were involved in at least one mass-casualty incident…

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