The United States military faces a critical three-year timeline to replenish key weapon stockpiles heavily depleted by the Iran war, a new analysis reveals, raising concerns about America's readiness for any future conflict, particularly with China.
The weapons systems in question include Tomahawk cruise missiles, designed for deep strikes into enemy territory, and Patriot and THAAD interceptors, crucial for defending against incoming missiles and drones. According to a report released Wednesday by the Center for Strategic and International Studies (CSIS), while the U.S. possesses sufficient munitions for any plausible scenario in the Iran war, the current depleted inventories have created a 'window of vulnerability' should a conflict arise in the Western Pacific.
The think tank emphasised that 'the time needed to rebuild those inventories has thus become a major concern.' This vulnerability comes as China has set a goal of being capable of taking Taiwan by force by 2027, a timeline experts view as ambitious rather than a firm deadline. However, Chinese President Xi Jinping recently warned that mishandling relations with the self-governing island could lead to a clash or even open conflict between the U.S. and China.
Despite the Trump administration's historic defence budget proposal of $1.5 trillion for 2027, which significantly boosts spending on high-end munitions, the CSIS analysis highlights that production takes time. 'It takes time to expand production capacity and to build these complex systems,' the report noted, projecting that this window of vulnerability will persist 'for several years until inventories return to their previous levels and another several years before they get to the levels that war planners desire.'
President Donald Trump and Defence Secretary Pete Hegseth have consistently maintained that the U.S. is capable of fighting any war, urging defence contractors to accelerate production. Chief Pentagon spokesman Sean Parnell echoed this sentiment, stating the military 'has everything it needs to execute at the time and place of the President’s choosing.' However, Virginia Burger, a senior defence policy analyst at the Project On Government Oversight and a former Marine officer, suggested that Pentagon officials 'knew the reality of our military stockpiles and hopefully told someone, ‘Hey, if we go to this fight, even in the most conservative estimates, we are drawing down our stockpiles to a critical level.’'
Concerns over diminished stockpiles have been a recurring theme in recent congressional hearings. Democrats often cite the munitions supply as a damning metric against the Iran war, which Trump launched without congressional approval. Some Republicans, conversely, attribute the problem to the U.S. sending Patriot missile defence systems to Ukraine following Russia's 2022 invasion. Mark Cancian, a retired Marine colonel and senior adviser at CSIS who co-authored the study, traces the roots of this predicament to the end of the Cold War, when the U.S. assumed future conflicts would be short and regional, requiring fewer high-end weapons. 'The thinking started to change, but it just takes time to build inventories,' he explained.
