The Pentagon is urging weapons manufacturers to accelerate production significantly.
This push follows the United States’ serious shortages in critical missile systems after five months of conflict with Iran.
According to analysis from the Center for Strategic and International Studies (CSIS), stocks of Patriot and Terminal High Altitude Area Defense (THAAD) interceptors have declined sharply. Simultaneously, military reports indicate that the Army has used “virtually all” of its Army Tactical Missile System (ATACMS) and Precision Strike Missile (PrSM) inventory, with replenishment taking years.
President Donald Trump recently stated the United States remains well-armed but also blamed former President Joe Biden for depleting arsenals through Ukraine support.
While there is partial truth to this claim—U.S. aid to Ukraine did reduce stocks of Stinger missiles, Javelins, and 155 mm howitzer ammunition—the more dramatic depletion of Patriot and THAAD interceptors during recent conflicts with Iran reflects a different issue.
Deputy Defense Secretary Steve Feinberg issued an urgent directive last week, demanding arms manufacturers provide detailed plans to expedite deliveries and boost production within 21 days. His memo emphasized that years-long development cycles are unacceptable: “We must dramatically accelerate our program schedules and expand our production capacity now.”
Pentagon spokesman Sean Parnell confirmed the memo’s authenticity but noted it aligns with broader efforts to rebuild defense industrial capabilities.
In late July, the White House convened discussions with major defense contractors and emerging weapons startups. The meeting included Defense Secretary Pete Hegseth, White House Chief of Staff Susie Wiles, and Director of the Office of Management and Budget (OMB) Russell Vought. Reports indicate these officials requested companies to directly advocate for increased defense spending through congressional reconciliation.
The Pentagon has already initiated production increases, including a $3 billion agreement with Lockheed Martin and Northrop Grumman to expand Patriot and THAAD component manufacturing—eventually tripling Patriot output and quadrupling THAAD production. A separate Lockheed contract of up to $58.6 billion aims to significantly boost Patriot interceptor production.
On June 17, Trump activated the Defense Production Act to expedite weapon production and address supply chain constraints.
The depletion scale is alarming. The United States began the Iran conflict with approximately 2,330 Patriot interceptors, but by April’s ceasefire, this had dropped to about 1,030—later falling further to 759–827 after renewed fighting, representing a 65 percent decline since the war started.
Similarly, THAAD stocks decreased from an estimated 452 interceptors pre-conflict to between 232 and 262 by April’s ceasefire, with current levels at 234–278—38 percent below prewar counts.
Patriot and THAAD systems serve as essential layers of U.S. missile defense: Patriot intercepts ballistic and cruise missiles as well as aircraft; THAAD targets high-altitude ballistic missiles over longer ranges. Both protect troops, bases, and allies.
The offensive arsenal has also been severely impacted. The Army has used nearly all ATACMS and PrSM inventory during the Iran conflict—missiles capable of striking deep behind enemy lines up to 250 miles. Their depletion may force greater reliance on riskier piloted bombing missions.
Additionally, the Navy has consumed nearly half its global Tomahawk stockpile—a long-range cruise missile system designed for precision strikes from ships and submarines.
Internal tensions have intensified within the administration. Trump reportedly clashed with Defense Secretary Pete Hegseth at Camp David, demanding answers about shortages and claiming the problem had been resolved. In a Truth Social post, he labeled reports of depleted stocks as “false and completely unfounded rumors,” calling coverage potentially “treasonous.” He later acknowledged the situation: “We have certain types of munitions that are very powerful, that we have unlimited, virtual unlimited supply. We have others where it’s a little bit tighter.”
The shortage was not unexpected. Before launching the Iran conflict, Joint Chiefs Chairman General Dan Caine warned Trump that America lacked sufficient stockpiles for prolonged warfare—yet Trump proceeded with an anticipated short war.
Five months later, consequences persist. CSIS estimates rebuilding Patriot, THAAD, and Tomahawk inventories to prewar levels would take at least three years, with Patriot missiles from the fiscal 2027 budget not arriving until May 2029. Major THAAD deliveries are projected around the same timeframe, while Tomahawk replacements could extend into late 2030.
While new facilities and contracts will eventually increase output, they cannot quickly replace what Trump’s war consumed in months.
The result is a strategic liability that may outlast the Iran conflict by years. Until arsenals are rebuilt, every emerging crisis begins with fewer weapons, reduced options, and less room for error—leaving the United States less flexible in ongoing conflicts.
