THAAD

What it is

THAAD (Terminal High Altitude Area Defense) is a US Army hit-to-kill ballistic missile defense system that intercepts short-, medium-, and intermediate-range ballistic missiles during their terminal phase of flight. It carries no warhead; the interceptor destroys its target through kinetic impact alone, colliding at high velocity above or at the edge of the atmosphere.

Each battery consists of six transporter-erector-launcher trucks carrying 48 interceptors, one AN/TPY-2 X-band radar built by Raytheon (now RTX), three command-and-control stations, and roughly 90 soldiers. The interceptor engages targets at ranges up to 200 km and altitudes up to 150 km, filling the gap above Patriot's ceiling and below the SM-3's exo-atmospheric engagement zone. Lockheed Martin is the prime contractor; the US Missile Defense Agency oversees the program; the US Army Air Defense Artillery branch operates it.

History

The US Army began THAAD development in 1992. The first intercept test, in December 1995, failed. Five consecutive tests from 1996 to 1999 also missed, after which the Army redesigned the system and relaxed altitude requirements. From 2006 to 2019, the Army and the Missile Defense Agency conducted 18 intercept tests; 14 succeeded. The first operational battery was activated in May 2008 at Fort Bliss, Texas. The US FY2021 National Defense Authorization Act authorized an eighth battery, fielded roughly by 2025. By October 2024, 799 interceptors had been delivered to US and foreign military sales customers combined.

Current state

As of mid-2026, ten THAAD batteries are operational globally: seven in the US Army, two operated by the United Arab Emirates, and one by Saudi Arabia (with six more on order). Permanent US deployments protect Guam and support US Forces Korea in South Korea. A battery was deployed to Israel in October 2024 ahead of the Iran confrontation.

The June 2025 Twelve-Day War consumed a reported 100 to 150 or more interceptors from US stocks, roughly a third of the entire US stockpile, at about US$12.7 million per shot. The gap it exposed was severe: at the time, the US was procuring only 11 to 12 interceptors annually, within an MDA FY2025 budget request of US$732 million for development, 12 interceptors, and integration work. The scale of that depletion is documented in 이스라엘 방어에 소진된 THAAD 재고, 재건에 수년 소요.

On June 24, 2026, the US Department of Defense awarded Lockheed Martin an up-to-US$35 billion, seven-year contract to ramp annual interceptor production from 96 to 400. That award is covered in 록히드, 걸프전으로 재고가 소진된 후 요격 미사일 생산 4배 확대를 위한 350억 달러 THAAD 계약 수주.

Relationships

Lockheed Martin builds the interceptor and launcher systems, with a Munitions Production Center in Troy, Alabama opened to expand capacity. Raytheon builds the AN/TPY-2 radar at its Andover, Massachusetts facility. The US Missile Defense Agency funds and manages the program; the US Army operates it. The UAE holds two batteries, Saudi Arabia one with six more contracted, and Qatar acquired a battery in a 2025 package; all three Gulf states use THAAD against Iranian and Houthi ballistic missiles. South Korea hosts a permanent US battery, a deployment China has opposed since its 2017 installation at OSAN Air Base. Israel draws on US-operated THAAD batteries but does not own the system.

What to watch

• Whether Lockheed can sustain the ramp to 400 interceptors per year, which depends on AN/TPY-2 radar production and component supply chains.
• Saudi Arabia's FMS delivery schedule for its remaining six batteries.
• The cost-exchange problem: at US$12 million or more per interceptor, adversaries can fire cheap ballistic missiles to drain magazines faster than stocks can be replenished.
• How the US balances THAAD coverage across the Indo-Pacific (Guam, South Korea) and the Middle East simultaneously.
• Whether directed-energy systems or lower-cost interceptors emerge as a viable substitute to break the current cost imbalance.