The United States has expended a large number of Tomahawk cruise missiles during the opening weeks of its war with Iran, prompting concern among military officials about dwindling supplies and the pace at which they can be replaced.

Reports indicate that more than 850 Tomahawk missiles have been fired within the first month of the conflict, reflecting an intense reliance on precision-guided weapons in ongoing operations.

The rapid rate of use has sparked unease inside the Pentagon, where officials are closely tracking how quickly inventory is being depleted and what that could mean for future missions.

Tomahawk missiles, launched from both naval vessels and submarines, have been a cornerstone of U.S. strike capabilities for decades. However, annual production is limited to only a few hundred units, making it difficult to quickly rebuild reserves once they are used at such a high rate.

Officials say that continued usage at current levels may require diverting missile stockpiles from other global regions, alongside longer-term efforts to ramp up manufacturing. At the same time, defense leaders are evaluating how consumption trends could affect operational readiness going forward.

One official described stock levels in the Middle East as “alarmingly low,” while another warned that without immediate steps, the military is approaching a “Winchester” state – a military term for running out of ammunition. However, a Pentagon spokesperson told the Washington Post that the military “has everything it needs to execute any mission at the time and place of the President’s choosing and on any timeline.”

Administration officials have pushed back on concerns about shortages, insisting that U.S. forces retain sufficient weaponry to sustain combat operations. The report also noted that more than 1,000 interceptor missiles have been deployed to defend against Iranian counterstrikes, placing additional strain on available supplies.

Much of the missile usage occurred during the initial phase of the campaign, according to estimates. With each Tomahawk costing roughly $3.6 million and taking up to two years to produce, replenishing the stockpile presents a significant logistical and financial challenge.