March 21, 2026 — Europe is grappling with fresh concerns over Iran’s ballistic missile capabilities after reports emerged that Tehran fired two intermediate-range ballistic missiles toward the joint US-UK military base on Diego Garcia in the Indian Ocean—a staggering ~4,000 km (about 2,485 miles) from Iranian territory.
According to multiple US officials cited by the Wall Street Journal and confirmed in reports from Reuters, CNN, and others, the missiles did not hit the target. One reportedly failed mid-flight, while a US warship launched an SM-3 interceptor at the second (with interception success unclear). No injuries or damage were reported at the strategic base, a key hub for US operations in the region.
This attempted strike marks a significant escalation and raises questions about Iran’s missile ranges. Tehran has long maintained a self-imposed limit of around 2,000 km on its ballistic missiles (publicly stated as sufficient to reach Israel and regional threats). The Diego Garcia attempt—roughly double that distance—suggests undeclared or extended capabilities beyond previous assessments.