US ammunition stocks have fallen to a concerning level, CNN reported on August 6, 2026, citing multiple sources familiar with the matter. Senior US military officials warned that Pentagon munitions reserves are now “concerningly low,” according to the report. The reductions were especially significant in key air-defence systems during the conflict with Iran.

CNN said the US military used nearly four-fifths of its THAAD missile-defence system interceptors compared with its pre-war inventory. At the same time, it used nearly half of its Patriot interceptors. The report characterized the depletion of these systems as substantial during the conflict.

A source familiar with a recent internal Pentagon report also said the US military used “almost its entire stockpile” of long-range, ground-launched precision missiles over the same period. The source text did not provide information on replenishment plans, new deliveries, or an official Pentagon response to the reported inventory levels.