The U.S. has depleted roughly two-thirds of its pre-war Patriot missile interceptor inventory during the conflict with Iran, new analysis says.

A Washington think tank says recent fighting with Iran has used up more of the U.S. military’s stockpiles of advanced air defense systems.

Escalating tensions with Iran have severely drained the stock of U.S. missile interceptors, notably affecting the inventory levels of Patriot and THAAD systems. This depletion…

The military has used approximately a third of its Patriot missile interceptors and about half of its THAAD ballistic missile interceptors.