Which Countries Have THAAD?
Questions about “which countries have THAAD” mix several official facts that are easy to confuse: U.S. batteries operated by the U.S. Army, official U.S. deployments on allied territory, and Foreign Military Sales of THAAD components or systems to partner governments. This article stays with official U.S. Army and Missile Defense Agency texts cited in an official Army Air Defense Artillery journal article published November 1, 2024, and with the official MDA pages that article cites. A radar sale is not automatically the same thing as a complete, already-fielded battery, and an official U.S. deployment on a partner’s territory is not the same thing as that partner owning the system. For how the system works, see What is THAAD?.
Official U.S. force and radar figures in the cited MDA fact sheet
The official Army journal article, citing a July 2022 Missile Defense Agency fact sheet, reported that there were then twelve AN/TPY-2 radars in the U.S. arsenal, with one more expected to complete production in 2025. It also records that the first U.S. THAAD battery, A Battery, 4th Air Defense Artillery Regiment, 11th Air Defense Artillery Brigade, activated in May 2008. Official U.S. forces have used THAAD in named locations recorded in official U.S. texts, including United States Forces Korea, which the same official article discusses as the source of a Joint Emergent Operational Need that led to Patriot-interceptor integration work and later official upgrades delivered to U.S. THAAD assets in South Korea by October 2022. Those are official descriptions of U.S. forces and U.S. deployments. They do not, by themselves, make the Republic of Korea the owner of those U.S. batteries.
Official FMS facts named in the same official MDA-cited account
The same official Army article, again citing the MDA fact sheet, says the United Arab Emirates procured two AN/TPY-2 radars in 2011 through U.S. Foreign Military Sales channels, and that the Kingdom of Saudi Arabia purchased seven radars in 2018, “with fielding to begin in 2024,” also through FMS channels. Those official, dated FMS facts are about radar procurement as stated in that official account. This article does not convert a 2011 or 2018 radar purchase into a 2026 on-the-ground battery count, and it does not add unofficial operator lists from industry marketing material. Where later official DSCA notifications or MDA updates name additional customers or later fielding milestones, those later official texts should be read on their own dates.
Because public discussion sometimes treats every radar, every temporary U.S. deployment and every announced FMS case as the same kind of “having THAAD,” official wording should be kept distinct. A U.S. battery in South Korea is a U.S. deployment supporting alliance defense, as described in official U.S. texts about USFK. An FMS purchase of AN/TPY-2 radars is an official transfer case. This explainer reports both, with their official dates, and does not produce a new combined inventory.
Sources
- 1st Lt. Michael J. McTiernan, “THAAD and Patriot Integration,” official Army Air Defense Artillery Journal, November 1, 2024, citing the Missile Defense Agency THAAD fact sheet, https://www.lineofdeparture.army.mil/Journals/Air-Defense-Artillery/ADA-Archive/2024-Edition/THAAD-and-Patriot-Integration/
- Missile Defense Agency, official THAAD system page and fact sheet, https://www.mda.mil/system/thaad.html and https://www.mda.mil/global/documents/pdf/thaad.pdf
