The US-Israeli war on Iran has exposed a widening gap between Washington’s promises to protect its allies and its ability to sustain that protection, with expensive missile interceptors being consumed faster than American manufacturers can replace them, The Atlantic reported.

In an investigation titled “The THAAD Delusion,” Christopher Leonard argues that the Terminal High Altitude Area Defense system became a cornerstone of US security arrangements in the Middle East despite being developed for a more limited battlefield role.

Iran’s ability to maintain missile attacks has challenged the assumption underpinning that role: that American forces would survive an opening barrage, then rapidly destroy the launchers responsible.

Instead, a prolonged conflict has placed mounting pressure on interceptor supplies, exposing weaknesses in US military planning, weapons procurement, and industrial capacity.

A missile shield built around a short war

According to the report, THAAD was originally intended to protect critical military deployments during the initial phase of a conflict, allowing US aircraft and naval forces time to respond.

Washington subsequently promoted the system as a central component of broader missile shields for regional allies, including the United Arab Emirates and Saudi Arabia.

The distinction has become consequential during the war on Iran. While THAAD has intercepted ballistic missiles effectively, Leonard writes that Washington neither accumulated enough interceptors for sustained operations nor established the manufacturing capacity needed to replace them quickly.

US interceptor stocks depleted by sustained warfare

Drawing on estimates from the Center for Strategic and International Studies, the report says US forces used more than 150 THAAD interceptors during the 12-day war in 2025 and another 190 to 290 during "Operation Epic Fury."

CSIS estimated that approximately 250 interceptors remained in the US stockpile. The report notes that additional deliveries could affect those calculations, while Washington has not disclosed its remaining inventories.

The depletion extends beyond THAAD. The investigation also described heavy consumption of Patriot interceptors and offensive weapons, including Tomahawk and JASSM missiles, placing pressure on multiple parts of the US arsenal.

Source:Websites