THAAD stocks gutted defending Israel — years to rebuild
The US fired well over 100 THAAD interceptors in the Iran war, draining up to a third of a costly, slow-to-replace arsenal
Summary
The 2026 Iran war drained the US THAAD arsenal. Washington deployed two of seven batteries to Israel and fired well over 100 interceptors — CNN puts it at 100–150, Iranian state media claims 200+ — against a stockpile so small the Payne Institute estimates roughly a third was consumed. Replacement is glacial: the US bought ~11 THAAD interceptors last year and is due ~12 this fiscal year, at ~$12.7M each, with rebuild estimated at three to eight years. The drawdown left a gap in the global missile-defence network and, paired with the Patriot drain and Israel's own Arrow-3 shortage, exposed how a single regional barrage can exhaust the highest-tier interceptors. RUSI flagged both Israel and the US running critically low.
By the numbers
- 100–150+ — THAAD interceptors fired (CNN; Iran claims 200+).
- ~1/3 — share of the THAAD stockpile consumed (Payne Institute).
- ~11 / ~12 — THAAD interceptors procured last year / due this fiscal year.
- ~$12.7M — unit cost of a THAAD interceptor.
- 3–8 years — estimated time to rebuild the stockpile.
Why it matters
THAAD is the upper-tier shield against medium-range ballistic missiles; only seven batteries exist. Committing two to one theatre and emptying a third of the magazine leaves thin global coverage and a multi-year hole — a costly dependency that complicates defending Israel, the Gulf and the Indo-Pacific at once.
What to watch
- Whether THAAD procurement is surged in the FY27 budget.
- Israel's reliance on US interceptors in any renewed Iran exchange.
- Lockheed's ability to lift THAAD output beyond ~12/year.