The Pentagon is pressing contractors to accelerate output of key missiles as the war with Iran drains U.S. stockpiles faster than industry can replace them and as Palantir Technologies' Maven Smart System helps commanders identify targets more quickly. Five months into Operation Epic Fury, which began on February 28, 2026, analysts cited by Bloomberg and Reuters describe some inventories as critically low. The United States has used at least half of its Patriot interceptor stockpile, up to 80% of its THAAD interceptors and most of its long-range precision munitions, with only about 20% of pre-war stocks estimated to remain and reports indicating that virtually all PrSM and ATACMS missiles have been consumed. The heaviest drawdown came in the first 39 days of the campaign, when intense early strikes compressed depletion timelines that planners had expected to manage over a longer period. Defense Secretary Pete Hegseth has asked Congress for billions of dollars in replenishment funding, signaling that current budgets and procurement contracts are insufficient to close the gap. The shortage reflects not only wartime consumption but also inventories that were already strained by years of commitments, including sustained transfers to Ukraine. Experts estimate it could take one to four years to restore affected systems to pre-conflict levels, even as the Pentagon gives industry 21 days to propose faster production plans and existing agreements aim to expand Patriot, THAAD and Tomahawk output. President Trump has publicly rejected descriptions of a shortage, saying stock levels remain adequate for current operations, while also threatening consequences for officials who leak information about munitions depletion.