The fragile U.S.-Iran ceasefire announced on April 7, 2026, after 40 days of war came at an opportune time for the United States. Several reports indicate it is running out of weapons amid the conflict.

As a scholar focused on U.S. military deployments, these reports are concerning and somewhat surprising.

After all, the United States spends more money on its military – nearly US$1 trillion annually – than the next nine highest-spending countries combined.

How can the U.S. military be depleting its weapons against a largely isolated country that spends less than 1% of what the United States does?

I believe that gauging U.S. weapons stockpiles provides insight into how the U.S. military may be constrained in the future, and what countries such as Russia and China may learn from the Iran conflict.

The US has a missile problem

Operation Epic Fury, as the U.S. calls the military operation in Iran, has employed a large amount of military assets in a short time. Military analysts suggest the U.S. is running low on Tomahawk missiles, surface-to-surface missiles and air-defense interceptor missiles.

After a month of war, the U.S. had used over 850 Tomahawk missiles, the sea- or ground-launched cruise missile that has a 1,500-mile........

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