The Center for Strategic and International Studies (CSIS) has said that the US has expended about a third of its Patriot and about half of its THAAD interceptor missiles since the start of its war on Iran.

It said the US had an estimated 2,330 Patriot interceptors prior to the war and now has about 759 to 827.

As for THAAD interceptors, the US had an estimated 452 prior to the war, and now has about 234-278.

CSIS said the numbers are drawn from US Department of Defense 2027 budget materials and public information.

A renewed war “would test diminished interceptor inventories,” it warned, adding that the reduced stoles “may force the United States and its coalition partners to take more risks with interceptions”.