CSIS: US missile stockpile needs 4+ years to recover

The US risks facing a significant shortage of missile weapons in the event of new military conflicts, due to the large-scale expenditure of arsenals during its confrontation with Iran, Report informs, citing the Center for Strategic and International Studies (CSIS).

Analysts conclude that the massive use of key precision missile systems against Iran will require several years to replenish stockpiles.

In particular, the arsenal of Patriot air defense missiles has dropped by more than 1,000 units from the pre-war level of 2,330. The THAAD system's interceptors have been reduced from an initial reserve of 360 to between 190 and 290. The PrSM operational-tactical missiles fell from 90 to between 40 and 70. The Tomahawk cruise missiles decreased from 3,100 to 850, while more than 1,000 JASSM cruise missiles were used from a total reserve of 4,000.

CSIS forecasts that full restoration of missile arsenals will take between 42 and 53 months.

On February 28, the US and Israel launched military operations against Iran. That same day, Iranian Supreme Leader Ali Khamenei was killed in the strikes. In retaliation, Iran launched missile and drone strikes on Israel and other countries of the region housing US military assets.

Iran, the US, and their allies agreed to a two-week ceasefire on the night of April 8, 2026.

Subsequent negotiations between Iran and the US, mediated by Pakistan, were held in Islamabad on April 11-12.

Trump announced the opening of the Strait of Hormuz to shipping on April 15, despite the continued naval blockade of Iranian ports. This step was taken to preserve relations with China. Later, on April 18, the Islamic Revolutionary Guard Corps Navy (IRGC Navy) of Iran announced the closure of the waterway, arguing that this was due to the violation of the ceasefire agreement and the ongoing blockade of Iranian ports by the American military.