U.S. Weighs Buying Chagos Islands to Lock In Diego Garcia Base, Raising New Colonial‑Era Tensions
Washington is reportedly considering buying the Chagos archipelago from Mauritius to secure long‑term control of the Diego Garcia military base, a critical hub for U.S. power projection from the Middle East to the Indo‑Pacific. For Chagossians exiled from their homeland and regional governments wary of ‘new colonial attitudes,’ the plan revives old wounds — this analysis lays out why a cluster of tiny atolls matters so much to U.S. strategy.
In a world of missile salvos and drone swarms, a remote coral atoll in the Indian Ocean might seem like a geopolitical footnote. Diego Garcia is anything but. The United States has used the island for decades as a key bomber, submarine and surveillance hub projecting power into the Middle East, East Africa and the Indo‑Pacific. Now, Washington is reportedly exploring an extraordinary step to secure that access: buying the surrounding Chagos archipelago from Mauritius once Britain transfers sovereignty.
According to reporting cited by regional outlets on 7 June, the White House is studying several options to preserve long‑term control over Diego Garcia, including a proposal for the U.S. to purchase the islands from Mauritius after London hands them over. The idea reflects growing concern in Washington that future Mauritian governments could impose conditions on U.S. basing rights, restrict military operations, or even end the current arrangement, especially under pressure from domestic politics or rival powers.
For the people most directly affected—the Chagossians displaced from their homeland in the late 1960s and early 1970s to make way for the base—the prospect of a U.S. purchase revives old traumas. Many Chagossian families have spent decades seeking recognition, compensation and a meaningful right of return. Their story—of forced removal by Britain to enable a secretive U.S. military facility—has become emblematic of the human cost of Cold War strategy. A change of nominal sovereign from London to Washington risks looking, to them, like another deal about their homeland struck over their heads.
Strategically, Diego Garcia is central to U.S. military planning. From the atoll’s long runway and deep‑water anchorage, American bombers have flown missions into Iraq and Afghanistan, and U.S. submarines and surveillance aircraft stage into some of the world’s most contested waters. The base sits astride vital sea lanes connecting the Persian Gulf, East Africa and East Asia. For U.S. planners worried about China’s expanding naval footprint and India’s rising ambitions, losing unencumbered access to Diego Garcia would be a serious setback.
The legal and political context is fraught. The International Court of Justice and the U.N. General Assembly have both signaled that Chagos should be returned to Mauritius, eroding Britain’s claim. London has since agreed in principle to hand over sovereignty, triggering a scramble in Washington to ensure that the U.S. base does not become a bargaining chip in future Mauritian politics. Buying the territory outright, or negotiating some form of long‑term lease with quasi‑ownership characteristics, would give Washington greater certainty—but at the cost of inflaming accusations that it is entrenching a “new colonial attitude.”
Critics in East Africa and across the Global South already frame the U.S. approach as high‑handed. A Kenyan parliamentary secretary recently warned that plans for a U.S. “Ebola space” at a Kenyan military base reflect a broader pattern of Western powers siting sensitive facilities in African states without sufficient local input, calling it a “new colonial attitude” marked by a sense that “you are inferior, you are not up to us.” The Chagos discussion fits neatly into that critique, especially if it proceeds without clear protections for Chagossian rights and Mauritian sovereignty.
What happens if Washington moves ahead with a purchase or quasi‑purchase? For one, it would set a precedent for the U.S. to directly own strategic territory in the Indian Ocean—an echo, some will say, of 19th‑ and early 20th‑century island acquisitions in the Pacific. It could also complicate U.S. messaging about a “rules‑based order” and support for decolonization, particularly at a time when Washington relies on African and Asian votes in multilateral forums to counter Russian and Chinese narratives.
Conversely, if the U.S. fails to secure robust legal guarantees and finds its basing rights curtailed, it would face expensive and operationally challenging choices: dispersing assets to smaller, less capable facilities; relying more heavily on partners such as Oman, Qatar or Australia; or accepting a reduced ability to surge bombers and surveillance aircraft into key theaters.
Key Takeaways
- The U.S. is reportedly exploring options, including an outright purchase, to secure long‑term control over the Chagos Islands—particularly Diego Garcia—after Britain transfers sovereignty to Mauritius.
- Diego Garcia is a critical U.S. military hub for operations across the Middle East, East Africa and the Indo‑Pacific, making its future status a high‑stakes strategic issue.
- Chagossians displaced decades ago and regional critics view such moves through the lens of “new colonial attitudes,” raising human rights and decolonization concerns.
- A U.S. purchase could provide legal certainty for basing but risk significant diplomatic backlash and accusations of double standards on sovereignty and self‑determination.
- Failure to secure the base’s future would force the U.S. to rethink its posture in the Indian Ocean, with implications for competition with China and crisis response capacity.
Outlook & Way Forward
Any decision on Chagos and Diego Garcia will likely unfold quietly, through prolonged negotiations among London, Port Louis and Washington. Mauritius, aware of the atoll’s bargaining power, will seek to balance domestic expectations of full sovereignty and justice for Chagossians with the financial and security benefits of hosting a major U.S. facility under its flag. Chagossian communities and human rights advocates will press hard for guarantees on return, citizenship and compensation, and could use international courts and U.N. bodies to challenge any arrangement seen as perpetuating their exclusion.
For Washington, the optimal path may lie in a carefully structured long‑term lease or basing agreement that keeps sovereignty clearly with Mauritius, embeds strong protections and participation for Chagossians, and provides transparent economic and security benefits to the host. Such a deal would preserve military access while blunting—if not eliminating—charges of neocolonialism. But it will require a level of openness and local consultation not always associated with U.S. basing policy.
If those efforts falter and the U.S. is seen as pushing for de facto annexation through purchase, the diplomatic cost could be high. African and Indian Ocean states might be less willing to host or expand U.S. facilities, and rivals would have a ready example to cite when accusing Washington of selective respect for international law. The future of a remote atoll, in other words, will say much about how the U.S. chooses to secure its power projection in a more contested and post‑colonial world.
Sources
- OSINT