New CSIS analysis warns the United States may have expended nearly two-thirds of its Patriot interceptor inventory during operations against Iran, highlighting growing concerns over air-defense readiness, missile production capacity, and the ability to respond to future global conflicts.
WASHINGTON | A new analysis by the Center for Strategic and International Studies (CSIS) concludes that the recent conflict with Iran significantly reduced America's inventory of advanced air-defense interceptors, raising concerns about the U.S. military's ability to sustain another major conflict before production replenishes critical stockpiles.
Using publicly available information on missile expenditures, production rates, and estimated inventory levels, CSIS analysts estimate the United States has expended approximately 65% of its Patriot interceptor inventory, leaving fewer than 1,000 Patriot missiles available for future operations.
The report also estimates that inventories of Terminal High Altitude Area Defense (THAAD) interceptors have declined by roughly 38%, leaving an estimated 234 to 278 interceptors available for deployment.
While the Pentagon has not publicly confirmed the inventory estimates or the methodology used in the report, defense experts say the findings underscore a growing challenge confronting the U.S. military: maintaining global readiness while supporting sustained high-intensity operations.


















