Losing access to Diego Garcia would force the United States to relocate assets, raising costs and weakening its Indo‑Pacific posture. The deal also challenges long‑standing U.K.–U.S. security cooperation and could embolden rival powers.
The Chagos Archipelago, situated in the central Indian Ocean, has been under British control since 1965 when the United Kingdom leased Diego Garcia to the United States for a joint military facility. The base hosts long‑range bombers, submarine support, and a key satellite tracking station, making it a linchpin of U.S. power projection across Asia, the Middle East, and Africa. Funding for the installation has largely come from U.S. taxpayers, and the lease is embedded in a bilateral security pact that has survived multiple administrations.
In early 2026 the British government announced a plan to cede sovereignty over the Chagos Islands to an unrelated African state as part of a broader decolonisation agenda. Critics, including former diplomats and defense analysts, argue the move is “an act of great stupidity” because it would jeopardise the existing lease, force the United States to renegotiate access, and potentially hand strategic territory to a nation lacking the infrastructure to manage a high‑security installation. The proposal also raises legal questions under international law and the 2019 International Court of Justice advisory opinion that the UK’s occupation is unlawful.
If the deal proceeds, Washington could lose a critical forward operating base, compelling the Pentagon to shift assets to more distant sites such as Oman or the Maldives, thereby increasing operational costs and response times. Allies in the Indo‑Pacific may view the erosion of the UK‑U.S. partnership as a weakening of the liberal security order, inviting greater influence from China and Russia. Policymakers are therefore weighing diplomatic concessions against the strategic cost, with many urging a renegotiated lease that preserves U.S. access while addressing decolonisation concerns.
Andrew Hale · The Hill · February 11, 2026
The British government’s proposed deal to hand over the Chagos Islands to an unrelated African country would be one of the most detrimental and self‑inflicted wounds in the history of global foreign and security policy. The deal would also deprive America of access to the joint U.S.–United Kingdom military base there that was largely paid for with Americans’ tax dollars.
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