Although military confrontation between the United States and Iran came to an end following the signing of a memorandum of understanding that concluded a months long war, another battle has begun inside Washington.
The focus has shifted to assessing the extent of the depletion suffered by the US military’s arsenal and identifying ways to rebuild its stockpile of munitions.
Recent American reports have highlighted the enormous volume of weapons consumed during the conflict and the obstacles preventing their rapid replacement. Officials have warned that restoring inventory levels could take years, potentially limiting the United States’ readiness to respond to any future major conflict.
But why will replenishing the depleted American stockpile be so difficult, and what challenges does this pose for US military capabilities?
How Severe Is the Depletion?
According to The New York Times, the war with Iran significantly depleted the US military’s arsenal, resulting in what officials within the US Department of Defence and members of Congress have described as an “alarming” decline in stockpile levels.
The report outlines the scale of the depletion, including:
- The use of approximately 1,100 long range stealth cruise missiles, originally developed for a potential conflict with China. This figure reportedly approaches the total number that had remained in US stockpiles.
- The launch of more than 1,000 Tomahawk cruise missiles, roughly ten times the number the US military purchases in a typical year.
- The use of more than 1,200 Patriot interceptor missiles, each costing more than US$4 million.
- The launch of over 1,000 ground-launched Precision Strike Missiles (PrSM) and ATACMS missiles.
In addition, Foreign Policy quoted US Central Command (CENTCOM) Commander Admiral Brad Cooper, who told a Senate hearing last month that the military used nearly 14,000 offensive munitions during the war.
A recent report by the Centre for Strategic and International Studies (CSIS), cited by the magazine, estimates that the true level of depletion may be even greater once munitions used in air defence systems, including Patriot and THAAD interceptors, are taken into account.
Why Won’t the Arsenal Recover Quickly?
The New York Times reports that efforts to replace depleted munitions continue to face both financial and production challenges, despite the Trump administration’s push to accelerate weapons manufacturing.
During meetings held at the White House this week, President Donald Trump and senior Pentagon officials pursued two parallel approaches to address the shortfall.
The first involves urging defence manufacturers to accelerate production of the depleted weapons systems, while the second focuses on persuading lawmakers to approve additional funding to cover the costs of the war.
However, Trump’s request for US$70 billion in additional funding to finance the war effort is expected to face strong opposition in Congress.
At the same time, defence industry executives reportedly told the President during a White House meeting last Wednesday that additional funding would be required to expand production lines, according to two officials familiar with the discussions.
The newspaper also noted that repeated announcements regarding increased ammunition production have yet to translate into any significant expansion of manufacturing capacity, according to defence industry officials.
What Solutions Are Being Considered?
According to Foreign Policy, President Trump activated the Defence Production Act just days before the agreement with Iran was announced in an effort to address what he described as the “structural constraints” facing America’s defence industrial base for munitions production.
Originally enacted in 1950, the legislation grants US presidents emergency powers to direct American companies to support national defence requirements.
The administration is also seeking to expand production capacity by utilising automotive manufacturing facilities.
Trump announced last Monday that companies, including Ford and General Motors, would dedicate parts of their factories to weapons production, according to the report.
The magazine also noted that the US military is exploring lower cost alternatives to strengthen its defensive capabilities.
Last Tuesday, it unveiled a new programme aimed at introducing low cost interceptor systems, with each missile priced below US$1 million.
What Are the Strategic Consequences?
The New York Times reports that the Pentagon’s ability to conduct future military operations, particularly any major conflict with China, could be directly constrained by ammunition shortages.
Current assessments suggest that rebuilding these depleted stockpiles may take years.
The newspaper quoted Tara Murphy Dougherty, Chief Executive Officer of defence software company Anduril, who said the United States faces “a wide and dangerous gap between what the warfighter needs and what the national security system can deliver.”
Dougherty attributed this imbalance to several factors, including fragmented systems and outdated military procurement processes, both of which create lengthy delays in launching new weapons programmes or maintaining equipment already in service.
A report published last month by the Centre for Strategic and International Studies concluded that while the United States possessed sufficient munitions for any likely scenario during the war with Iran, the depletion of its stockpiles has created a significant gap in military readiness should a conflict erupt in the Western Pacific.
The report warned that the time required to rebuild these inventories has become a major strategic concern.
