Does the US Risk Running Out of Key Weapons?

The recent Senate hearing on stalled arms sales to Taiwan has highlighted a pressing concern for the US military: dwindling munitions. This is not just a minor issue but a strategic problem with far-reaching implications for US-Iran relations.

According to The Washington Post, the US used an alarming number of advanced missile-defence interceptors during the 40-day Iran war, exhausting nearly half its total inventory. Over 200 THAAD interceptors were launched, along with more than 100 Standard Missile-3 and Standard Missile-6 interceptors. In contrast, Israel fired fewer than 100 Arrow interceptors and around 90 David’s Sling interceptors.

The Center for Strategic and International Studies (CSIS) has warned that rebuilding pre-war levels of ammunition will take anywhere from one to four years as missiles in the pipeline are delivered. This means the US military is facing a critical shortage of strategically valuable munitions, which could have significant consequences in future conflicts.

Some experts argue that the Iran war did not empty the US arsenal but rather burned through some of its most important layers. Professor Omar Ashour notes that while expenditure on Tomahawks is serious, the missile defence depletion is a sharper strategic problem for the US.

The dwindling stockpiles are indeed factoring into Trump’s decision-making process, with Ashour stating that “stockpiles are now part of the escalation calculus.” The US can restart striking, but every renewed wave comes with an opportunity cost – depleting its strategic magazine and potentially affecting other theatres of war.

The pressure from Israel to restart the war is another factor contributing to this conundrum. As CSIS notes, Iran’s missiles and drones during the war “posed a significant challenge” for US forces. The persistent pressure from Israeli officials has irritated some US officials, particularly given the strain that renewed fighting would impose on the Pentagon’s munitions supply.

The ongoing struggle between Washington and Tehran is fraught with uncertainty, and the question of how long the US can sustain its military operations without depleting its stockpiles looms large. The current standoff highlights the importance of carefully managing resources in a rapidly changing strategic landscape.

With future conflicts already casting long shadows over Washington’s calculations, it remains to be seen how this conundrum will unfold. As the world watches this unfolding drama, one thing is clear: the war on Iran has revealed a deeper concern – that of sustaining an increasingly fragile supply chain.