Iran has fired missiles towards the joint US-UK military facility on Diego Garcia, escalating tensions after Britain backed expanded American military action in the region. According to reports, two intermediate-range ballistic missiles were launched, but neither struck the base. Get today's headlines by email Officials cited by US media said one missile was intercepted by a US warship, while the other failed before reaching its target. The attempted strike highlights the growing risk to key Western military installations amid the widening conflict. The base, located in the Chagos Islands, is a critical hub for long-range operations and has been used extensively by the United States for missions in the Middle East. UK decision prompts warning from TehranThe missile launch came shortly before the UK formally approved the use of its bases for US operations targeting Iranian missile capabilities linked to the Strait of Hormuz. British officials described the move as part of “collective self-defence” aimed at protecting shipping routes and regional stability. In response, Iran issued a stark warning. Foreign Minister Abbas Araghchi said Britain’s decision risked endangering its own citizens. Writing on social media, he accused Prime Minister Keir Starmer of putting “British lives in danger” by allowing US forces to operate from UK-controlled sites. Tehran has indicated it will exercise what it describes as its right to self-defence, raising fears of further retaliation. Strategic importance of Diego GarciaDiego Garcia lies roughly 3,800 kilometres from Iran and hosts a major airbase capable of supporting long-range bombers, alongside fuel depots, radar systems and a deep-water port. Its location makes it a vital staging point for operations across the Middle East and surrounding regions. The UK has agreed to transfer sovereignty of the islands to Mauritius while retaining access to the base under a lease arrangement, ensuring its continued military use. Political divisions and regional falloutThe UK government condemned the missile launch as a “reckless” act that threatens both British interests and allies. It confirmed that Royal Air Force assets remain active in defending personnel and infrastructure across the region. However, the decision to expand US access to British bases has sparked political criticism at home. Opposition figures have questioned the shift in policy and called for parliamentary oversight, arguing that the move risks drawing the UK deeper into the conflict. US President Donald Trump also weighed in, suggesting Britain had been slow to act while continuing to press allies for greater involvement in securing the vital shipping route. Meanwhile, Iran has intensified attacks across the Gulf and continues to disrupt traffic through the Strait of Hormuz, a key artery for global oil supplies. Rising economic concernsThe escalating conflict is beginning to have broader economic consequences. The UK government is expected to convene an emergency meeting to assess the impact on energy prices and the cost of living, as disruptions to oil shipments ripple through global markets. Join the discussion? Already a member? Adapted by ASEAN Now. Source 21 March 2026
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