US weapons stockpile depleted after Iran strikes, rebuilding could take 3 years: Report
A Washington DC-based think tank reported that the US military’s stockpile of Tomahawk cruise missiles, THAAD, and Patriot interceptors was depleted after Operation Epic Fury in February, requiring at least three years to rebuild. The depleted inventories create a vulnerability in potential conflicts, particularly with China, despite bipartisan support and a $1.5 trillion defense budget proposal for 2027.
The Center for Strategic and International Studies (CSIS) warned Wednesday that the US military’s depleted stockpiles of three critical weapons systems—Tomahawk cruise missiles, THAAD missile defense systems, and Patriot interceptors—will take at least three years to fully replenish. These munitions were heavily used during Operation Epic Fury, a joint US-Israel strike against Iran in February, leaving the military with limited firepower for future conflicts. The report highlights a significant vulnerability in the Western Pacific, where China remains a key adversary. CSIS stated that while current inventories suffice for plausible scenarios in Iran-related conflicts, the depleted stocks create a ‘window of vulnerability’ for a potential confrontation with China. The think tank emphasized that rebuilding production capacity for these complex systems will take years, even with increased funding. The Trump administration’s proposed $1.5 trillion defense budget for 2027 aims to accelerate high-end ammunition production, a process already underway under the Biden administration. However, CSIS noted that the issue is not funding but time, as expanding production capacity for advanced weapons systems requires sustained effort. Bipartisan support in Congress for rebuilding stockpiles remains strong, but the report cautions that full replenishment—including reaching desired war-planning levels—could take even longer. President Trump and Defense Secretary Pete Hegseth have repeatedly asserted that the US can fight any war, pushing contractors to rapidly increase ammunition output. Despite these assurances, the CSIS analysis underscores that industrial constraints will limit the military’s readiness for years. The report concludes that while financial resources are available, the timeline for restoring full stockpiles remains a critical challenge for US defense strategy.
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