| date,location,authority,system_count,source_document,notes | |
| 2005-09,"Fort Bliss, TX (operational test site)",US Army,1,MDA THAAD Fact Sheet (Doc 3),First operational THAAD battery activated | |
| 2009-08,"Adak Island, AK",US Army/Pacific Command,1,MDA THAAD Fact Sheet (Doc 3),Temporary deployment; withdrawn after North Korean provocation cycle | |
| 2013-04,Guam (Andersen AFB area),US Army Pacific,1,CRS IF10541 (Doc 4),Permanent deployment in response to North Korean ICBM tests | |
| 2015-07,"Hawaii (Kauai, PMRF)",US Army,1,GAO-22-104344 (Doc 8),Rotational/testing deployment; part of Pacific layered defense | |
| 2016-12,United Arab Emirates,US Army Central,1,CRS IF10541 (Doc 4),GCC theater deployment; supports regional air and missile defense | |
| 2017-09,"Seongju, South Korea",US Army/USFK,1,USCC Staff Report (Doc 10),USFK permanent deployment; triggered $7.5B Chinese economic coercion campaign | |
| 2019-01,Saudi Arabia (Prince Sultan AB),US Army Central,1,GAO-25-108187 (Doc 9),Deployed after Aramco attacks; part of CENTCOM posture enhancement | |
| 2023-06,"Romania (MK 41 site, Deveselu)",NATO/US Army (advisory),0,CRS IF10541 (Doc 4),THAAD integration study; Aegis Ashore is primary; THAAD not deployed | |
| 2024-10,Israel (undisclosed location),DoD/IDF coordination,1,DOD Press Release (Doc 11),Emergency deployment following Iranian ballistic missile attack Oct 1 2024 | |
| 2026-02,Middle East (CENTCOM AOR),US Army/CENTCOM,2,CRS IF12645 v15 (Doc 6),Surge deployment for Operation Epic Fury; February–June 2026 | |