The United States reportedly used about half of its advanced missile defense interceptors while defending Israel during its war with Iran, according to a Washington Post report published on May 22, 2026. The report stated that US forces launched more than 200 THAAD interceptors to destroy Iranian missiles targeting Israel, representing nearly half of the Pentagon’s total stockpile. Additionally, over 100 Standard Missile-3 and Standard Missile-6 interceptors were fired from US naval vessels in the eastern Mediterranean.

The report added that Israel relied less on its own defense systems during the conflict. Israeli forces launched fewer than 100 Arrow interceptors and around 90 David’s Sling missiles. A US official, speaking anonymously, told the Washington Post that if another war with Iran breaks out, the United States may need to deploy even more interceptors because Israel has decided to withdraw some of its missile defense batteries for maintenance.

The information was originally cited by Middle East Eye, which referenced the Washington Post’s findings.