Iran fired a pair of intermediate-range ballistic missiles at Diego Garcia. One missile failed in flight, the other was engaged by a US Navy destroyer using an SM-3 missile.
Makes the range of the Iranian IRBM ~3800km+, far enough to target sites into Central Europe. 4000Km is long enough to reach Fairford…. Or London.
(The great circle distance between Tabriz in NW Iran and London is 3900Km*)
https://timesofindia.indiatimes.com/.../129712958.cms
How Iran targeted US, UK base Diego Garcia 4,000km away in Indian Ocean
https://www.reuters.com/world/middle...ts-2026-03-21/
Iran targeted but did not hit Diego Garcia base with missiles, WSJ reports
March 20 (Reuters) - Iran fired two intermediate-range ballistic missiles at Diego Garcia but did !not hit the U.S.-U.K. military base in the Indian Ocean, the Wall Street Journal reported on Friday, citing multiple U.S. officials.
One of the missiles failed in flight, while a U.S. warship fired an SM-3 interceptor at the other, although it could not be determined !if the interception succeeded, the newspaper said. The Journal did not specify when the missiles were fired.
The White House and the British embassy in Washington and Ministry of Defence did not immediately respond to Reuters requests for comment.
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https://www.greatcirclemap.com/?routes=TBZ-LHR