The United States has warned its allies that deliveries of several key weapons systems could be delayed by as much as five years as Washington gives priority to rebuilding its own munitions stocks depleted during military operations against Iran, Bloomberg reported, citing unnamed officials.

Germany has already encountered the problem after asking Washington to accelerate deliveries of long-range Tomahawk cruise missiles and ground-based Typhon launchers. Because of shortages in US inventories, Raytheon, part of RTX, is unlikely to fulfill the order within the next five years.

According to Bloomberg, US forces used more than half of their newest Patriot interceptors during combat operations in the Middle East, along with a third of the Tomahawk stockpile and nearly half of Precision Strike missiles and THAAD interceptors.

Sources also reported delays affecting some Eastern European countries that, like Germany, rely on American weapons systems. The problems emerged after the conflict in the Middle East began.

Bloomberg reported that Pentagon officials acknowledged that heavy ammunition use during the first months of operations against Iran had created strategic inventory shortages and exposed limits in the industrial base that prevent arsenals from being replenished quickly.

The Pentagon’s decision to prioritize rebuilding US stockpiles is also affecting weapons deliveries to Ukraine. At the same time, according to Bloomberg’s sources, Washington continues to transfer weapons purchased by European allies for the Ukrainian military.