The United States burned through more than half its stockpile of Tomahawk cruise missiles during five weeks of combat with Iran, according to a new Pentagon analysis that contradicts President Trump's claims of "unlimited supply" for America's war machine.

The Center for Strategic and International Studies found the U.S. "may have expended more than half of the prewar inventory" of at least four key munitions systems during the bombing campaign that ended with Trump's indefinite ceasefire extension earlier this week. The depletion includes America's most advanced long-range strike weapons and air defense interceptors protecting U.S. forces across three combat theaters.

Trump told reporters Thursday the U.S. faces no pressure to end the conflict, declaring "we've never had so much ammunition." But congressional testimony this week painted a starkly different picture of America's war-fighting capacity heading into potential future conflicts with China or other adversaries.

Admiral Samuel Paparo, commander of U.S. Indo-Pacific forces, warned senators Tuesday that replenishing high-end systems like Tomahawks and AGM-158 JASSM stealth missiles could take years. Major defense contractors Lockheed Martin and RTX's Raytheon division would need "one to two years" to scale production back to adequate levels, Paparo testified before the Senate Armed Services Committee.

"It won't be soon enough," Paparo said. "There are finite limits to the magazine, and I have all the faith in the world that they're being employed judiciously."

The munitions crunch affects more than just the Iran theater. Air defense interceptors remain in high demand across Europe and the Indo-Pacific, where Pentagon planners view them as essential for any potential Taiwan conflict. Defense officials have warned for years that supporting simultaneous operations in multiple regions strains America's most sophisticated weapons stockpiles.

The CSIS report concluded that while "the United States has enough missiles to continue fighting this war under any plausible scenario," the real danger lies ahead. "The risk — which will persist for many years — lies in future wars," the analysis warned.

Pentagon officials draw a sharp distinction between America's technological superiority and its actual capacity to sustain prolonged conflicts. While U.S. weapons remain unmatched in capability, the industrial base struggles to produce them in the quantities needed for extended combat operations against peer adversaries.

The ceasefire extension provides breathing room to resupply forward-deployed forces in the Middle East with existing stockpiles. But rebuilding America's depleted munitions reserves will test the defense industrial base's ability to surge production while supporting ongoing operations worldwide.