US munitions depleted by Iran war will take years to restore, analysis finds

Key Points:

• The U.S. will need at least three years to restore critical weapons systems to prewar levels after a 38-day bombing campaign against Iran, with depleted inventories posing a vulnerability for potential conflicts in the Western Pacific, according to a Center for Strategic International Studies (CSIS) report.
• CSIS estimates over 1,000 Tomahawk missiles and up to 290 THAAD interceptors were used, far exceeding average annual procurement rates, with replenishment of these stockpiles not expected until 2029-2031.
• The Pentagon has not disclosed exact munitions expended but estimates the conflict cost roughly $29 billion, with officials emphasizing that the main challenge is time needed to expand production capacity rather than funding.
• White House officials, including Deputy Press Secretary Anna Kelly, assert the military currently has sufficient munitions and highlight efforts led by President Trump to increase domestic weapons production, with defense contractors agreeing to significantly ramp up output.
• Defense Secretary Pete Hegseth confirmed that replenishment efforts are underway, noting investments in new manufacturing plants and production lines aimed at accelerating weapons availability.