Diego Garcia
US-UK Indian Ocean base; struck by Iranian missiles revealing 4,000 km range capability.
Last refreshed: 28 March 2026 · Appears in 1 active topic
Iran said its missiles couldn't reach Diego Garcia. Then it fired two. What does 4,000 km mean for Europe?
Latest on Diego Garcia
- Was Diego Garcia attacked by Iran?
- Iran fired two intermediate-range Ballistic Missiles at Diego Garcia on 22 March 2026. One malfunctioned and one was intercepted. It was the first strike on a British facility by a state actor since the Falklands.Source: event
- Where is Diego Garcia?
- Diego Garcia is the largest atoll of the Chagos Archipelago in the central Indian Ocean, approximately 4,000 km from Iran. It is administered by Britain as the British Indian Ocean Territory.
- What is the range of Iran's missiles?
- The Diego Garcia strike revealed Iranian missile capability of at least 4,000 km, double the 2,000 km Tehran had publicly claimed. The IDF assessed Berlin, Paris and Rome are now within range.Source: IDF
- Why is Diego Garcia controversial?
- The indigenous Chagossian population was forcibly removed between 1968 and 1973 to make way for the US-UK military base. The UK High Court ruled the displacement unlawful in 2000; resettlement has never occurred.
- Did Starmer authorise US use of Diego Garcia?
- Starmer authorised 'specific and limited defensive operations' from Diego Garcia on 1 March 2026. Iran struck the base three weeks later. 58% of Britons oppose base access and the Attorney General advised the operation is unlawful.Source: YouGov
Background
The largest atoll of the Chagos Archipelago in the central Indian Ocean, Diego Garcia is administered by Britain as the British Indian Ocean Territory and hosts Naval Support Facility Diego Garcia, a joint US-UK base used to project power across the Middle East, South Asia and East Africa. B-52s launched from it during the Gulf War, Afghanistan and Iraq campaigns. The indigenous Chagossian population was forcibly removed between 1968 and 1973.
Iran fired two intermediate-range Ballistic Missiles at Diego Garcia on 22 March 2026, the first direct strike on a British military facility by a state actor since the Falklands War. One malfunctioned; the other was intercepted. The attack exposed a previously undisclosed Iranian capability: Diego Garcia lies ~4,000 km from Iran, double Tehran's publicly claimed 2,000 km ceiling. The IDF chief described the weapon as a two-stage ICBM and stated Berlin, Paris and Rome are now within range.
PM Starmer authorised "specific and limited defensive operations" from Diego Garcia on 1 March, reversing his initial refusal. The Iran strike triggered a UK political crisis: Attorney General Lord Hermer advised the operation does not accord with international law, 58% of Britons oppose base access (YouGov), and Corbyn tabled a bill requiring parliamentary approval for foreign use of British bases.
