Iran launched two intermediate-range ballistic missiles on Friday targeting the joint United States and United Kingdom military installation at Diego Garcia in the Indian Ocean. Neither weapon struck the heavily fortified island, located approximately 4,000 kilometers from Iranian territory. According to The Wall Street Journal, one missile failed during its flight, while a U.S. Navy warship fired an SM-3 interceptor at the second.
The Pentagon has declined to issue an official comment regarding the interception or confirm its success. The unprecedented launch outside the immediate Middle East theater follows a recent British government decision authorizing U.S. forces to use U.K. bases, including Diego Garcia and RAF Fairford, for operations against Iranian missile sites. Iranian officials previously warned London that granting such access would place British facilities at direct risk.
The attack demonstrates a significant expansion in Tehran’s demonstrated military reach. In February, Iranian Foreign Minister Abbas Araghchi stated the country had deliberately limited its missile range to 2,000 kilometers. The strike on Diego Garcia, utilizing weapons capable of traveling double that distance, marks what defense analysts identify as Iran’s first operational use of intermediate-range ballistic missiles.
Amid expanding world hostilities, the United States is accelerating military deployments to the region. The Defense Department is sending an amphibious assault ship carrying roughly 2,500 Marines to West Asia ahead of its scheduled arrival. Diego Garcia remains a central strategic hub for allied operations, maintained under a secure lease despite Britain’s recent agreement to eventually transfer sovereignty of the broader Chagos Islands to Mauritius.