The U.S. Department of Defense warned Japan that the delivery of 400 Tomahawk cruise missiles will be significantly delayed [1].
This delay highlights a critical strain on American military inventories following high-intensity operations. The shortfall may impact the strategic defense timelines of key allies in the Indo-Pacific region.
According to the Pentagon, U.S. missile stockpiles were severely depleted [2] after the conflict with Iran, known as Operation Epic Fury. The U.S. fired hundreds of Tomahawk missiles [3] during the operation, which forced officials to prioritize the replenishment of domestic inventories over scheduled exports.
Defense Secretary Pete Hegseth and Japanese Defense Minister Shinjiro Kōizumi are managing the fallout of these depleted reserves. While the U.S. is struggling to replace the munitions used in the Iran war, other reports indicate that Iran retains about 70 percent [4] of its pre-war missile stockpile.
There are contradictions regarding the extent of the shortage. While the Pentagon said depleted stocks caused the delay of the shipment of 400 missiles to Japan [1], the U.S. recently approved $17 billion [5] in missile sales to Gulf nations. This suggests that the U.S. may be prioritizing certain regional partnerships, or specific missile types, over others despite the overall inventory strain.
The current situation underscores the difficulty of maintaining a global munitions pipeline while engaged in active combat. The U.S. must now balance the immediate needs of its own readiness with the long-term contractual obligations made to allies like Japan.
“The U.S. fired hundreds of Tomahawk missiles during the operation”
The depletion of Tomahawk stockpiles reveals a vulnerability in the U.S. industrial base's ability to rapidly scale production during a conflict. By delaying deliveries to Japan while simultaneously approving multi-billion dollar sales to the Gulf, the U.S. is navigating a complex geopolitical balancing act. This indicates that missile availability has become a primary lever of diplomatic influence and a potential point of friction in the U.S.-Japan security alliance.
