Pentagon Warns Years Needed to Replenish Critical Missile Stocks Amid Iran Conflict

US security experts are raising alarms over the rapid depletion of the American military's critical missile stockpiles due to ongoing hostilities with Iran. According to a CNN report, if the current pace of missile use continues, the Pentagon could face a significant shortage of advanced missiles, potentially undermining its readiness for future conflicts with China or North Korea.

Data from the Center for Strategic and International Studies (CSIS) reveals that by April, the Pentagon had expended at least half of its THAAD interceptors, half of its Patriot missile interceptors, and about 30% of its Tomahawk cruise missiles. Thousands of missiles have already been fired in the early stages of the conflict, straining long-range precision strike and missile defense capabilities.

Mark Cancian, a former Marine colonel and CSIS analyst, warned that continued fighting at this rate increases strategic risks, particularly the US military’s ability to respond swiftly in the Indo-Pacific region. Production rates are currently insufficient to keep pace with consumption. The Pentagon receives roughly 15 new Tomahawks and 20 Patriot interceptors monthly, with no new THAAD interceptors expected in 2026. CSIS estimates it will take at least three years to restore stockpiles to pre-conflict levels.

Elaine McCusker, a former Pentagon official now at the American Enterprise Institute (AEI), projected replenishment could take two to five years, influenced by production capacity and industrial expansion. Funding concerns persist, as Congress has yet to approve a dedicated budget for missile replacement, relying instead on regular procurement plans that do not match current attrition rates.

The Trump administration has invoked the Defense Production Act to accelerate manufacturing and signed agreements to expand production lines, including licensing Patriot missile production to Ukraine and Germany. However, experts caution that establishing new production lines takes years, limiting immediate impact. Despite these challenges, Pentagon spokesperson Sean Carnell emphasized that the US military remains the strongest globally and capable of fulfilling all presidential directives while maintaining a significant arsenal to protect national interests worldwide.