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CSIS Report: U.S. Uses Over 50% of THAAD and Patriot Interceptors in Ongoing Iran Conflict
A new report from the Center for Strategic and International Studies details significant U.S. munitions depletion during the ongoing war with Iran that began February 28, 2026. The conflict has disrupted global oil trade through the Strait of Hormuz, boosted China's railway alternatives, and affected supplies like Iranian pistachios.
Apr 26, 3:02 AM·4m read25 sources
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U.S. has fired over 53% of its THAAD interceptors and at least 45% of its critical Patriot missile interceptors during the war on Iran, according to a Center for Strategic and International Studies report released on Tuesday. U.S.
Could have used up to 290 of its estimated 360 THAAD interceptors, more than 80%. U.S. has also used more than 45% of its Precision Strike Missiles (PrSMs) and 1,100 long-range stealth cruise missiles, nearly all of the total in Washington’s stockpile.
U.S. has burned through thousands of missiles since the Iran war began on February 28, 2026. U.S. has enough critical munitions to continue its war on Iran under any plausible scenario, but notes that diminished stockpiles create near-term risks for potential conflicts with peers like China.
A potential supplemental bill for the Iran war is slated to cost around $80 to $100 billion, according to the White House. The Army has asked for more than $20 billion in the DoD’s FY 2027 defense budget request to buy more replacement THAADs and Patriot missile interceptors.
Iran's Foreign Minister Abbas Araqchi held talks in Oman on April 26, 2026, according to an Iranian foreign ministry statement.
U.S. conflict with Oman's Sultan Haitham bin Tariq al-Said in Muscat. U.S.
Military presence in the Middle East was fuelling insecurity and division and called for a regional security framework free of outside interference. The Middle East conflict has largely halted shipping via the Strait of Hormuz, impacting trade of energy products. The Strait of Hormuz is a key passage for oil produced in the Middle East.
U.S. The China-Europe railway network links 235 cities across 26 European countries with more than 120 Chinese cities. Prices for pistachios have surged after disruption to export routes from Iran.
