Iran launched 181 missiles [1] at Israel in May 2026 during a conflict known as Operation Epic Fury.
The scale of the attack tested the limits of regional air defenses and forced the U.S. to deplete a significant portion of its specialized missile inventory. This reliance highlights the deep strategic dependency between the U.S. and Israeli security frameworks during high-intensity missile engagements.
Iran fired the projectiles in retaliation after an Israeli strike on Iranian territory [4]. The Iranian Prime Minister said they made a "big mistake" and will pay for it [5].
Air defenses from Israel, the U.S., and Jordan intercepted the vast majority of the incoming missiles [1]. An IDF spokesperson said the joint effort successfully neutralized most of the threat [5]. However, the cost of this defense was steep for the U.S. military. The U.S. expended more than 200 THAAD interceptors defending Israel [3]. Some reports indicate this represents over half of the available THAAD inventory [2].
Casualties from the engagement remained limited. One Palestinian died [1], and two Israelis were injured [1].
The operation occurred amidst broader regional tensions and followed a call for restraint from the U.S. administration [4]. Despite those calls, the Israeli strike on Iranian soil triggered the retaliatory barrage, which in turn necessitated the massive deployment of U.S. interceptors to prevent widespread damage on the ground.
“The United States has expended more than 200 THAAD interceptors defending Israel.”
The depletion of over 200 THAAD interceptors suggests a critical vulnerability in U.S. missile defense stockpiles. By using more than half of its available inventory in a single engagement, the U.S. may face a temporary gap in its ability to defend other strategic interests globally until replacements are manufactured. This event underscores the high material cost of asymmetric warfare, where cheap missiles can force the expenditure of vastly more expensive interceptors.
