By Gabriel Snyder, Didi Kirsten Tatlow, and Tom O'Connor
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Try to find Diego Garcia on a map. Don’t worry, we’ll wait. It takes a moment. The atoll sits in the precise middle of the Indian Ocean, a footprint-shaped sliver of coral and palm trees so remote that the nearest major landmass is Sri Lanka, roughly a thousand miles to the north. The island’s total land area is under 17 square miles, and it has no indigenous industry, no tourist infrastructure, no particular reason for anyone to care about it.
China noticed anyway.
Diego Garcia’s strategic profile, when properly examined, is almost absurdly comprehensive. The atoll has reliable freshwater—a logistical gift in a region where resupply is everything. Its position in the Indian Ocean means, quite literally, that everything passes by. The joint U.K.-U.S. military base located there since the 1970s allows long-range bombers to reach the Red Sea, the Cape of Good Hope and the Strait of Malacca, serves as a forward operating station for nuclear submarines and is critical to the U.S. Space Force’s tracking infrastructure.
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Illustration by Gregori Saavedra
“Whoever controls Diego controls the Indian Ocean trade routes,” Sam Olsen, chief analyst at Sibylline, a London-based strategic risk consulting group, told Newsweek. “If we don’t control Diego, what this means is there is no way the West will be allowed guaranteed access to the Indian Ocean and eastwards.”
So, Beijing went to work. For years, China’s campaign in Mauritius—the small island nation that claims sovereignty over the Chagos Archipelago, Diego Garcia’s island group, and with it Diego Garcia’s future—was patient, methodical and largely invisible to Western policymakers who were not paying attention.
In 2019, Mauritius became the first African country to sign a free trade agreement with China; Beijing’s Ministry of Commerce described the deal as “a new platform for China’s cooperation with Africa.” According to AidData, a research lab at William & Mary university, Chinese lending and grants to Mauritius totaled $1.4 billion between 2000 and 2023—more than $1,000 per capita. In December 2025, a senior Huawei official described Mauritius as the future “showcase and role model for the rest of the continent.”
None of this is coincidence. It is the visible edge of a much larger Chinese strategic project—one built on the premise that the 21st century’s great power competition would be won not through direct military confrontation but through the slow, patient accumulation of economic leverage, infrastructure dependence and political relationships in places the West wasn’t watching. Diego Garcia, sitting astride the sea lanes carrying Gulf oil toward Asia and Asian goods toward Europe, was the ultimate prize at the end of that particular thread.
Then came Iran.
“I firmly believe that the primary impetus behind the Trump administration’s military actions against Venezuela and Iran is the global power competition that Washington has consistently advocated, particularly the competition between the United States and China,” Hongda Fan, director of the China-Middle East Center at Shaoxing University, told Newsweek.
China’s losses are concrete. Venezuela has been one of the largest recipients of Chinese overseas finance anywhere in the world. Then the economy collapsed, Nicolás Maduro’s government fell to a stunning U.S. operation and $60 billion of patient investment—largely structured as debt-for-oil arrangements—vanished with it. Before Israel and the U.S. launched their bombing campaign, China was the largest buyer of Iranian oil; they imported on average 1.38 million barrels per day according to a 2025 analysis from Kpler, often routed through intermediaries to evade sanctions.
“The Trump administration not only seeks to topple the leaders of Venezuela and Iran who are unfriendly toward the United States but also aims to control the energy resources of these two nations and even broader regions,” Fan said. “This is well understood in Beijing.”
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The strategic shock extends well beyond barrels of oil. China’s relationship with Iran had deepened dramatically in 2021, when Beijing and Tehran signed a 25-year cooperation agreement covering energy, infrastructure and security. Iran sat astride several Belt and Road corridors: rail routes connecting Central Asia to the Persian Gulf, pipelines feeding energy eastward, shipping lanes linking Gulf ports to Chinese industry.
In 2023, Beijing had brokered what looked like a diplomatic masterstroke: a rapprochement between Saudi Arabia and Iran, its most visible foray into Middle Eastern statecraft—both guarding its logistical self-interest and reducing conflict risk between two of China’s largest energy suppliers, while keeping American intervention at bay. And perhaps most importantly, Iran had long served as a geopolitical anchor, tying down American military resources—carrier groups, air bases, missile defense systems—that Washington would otherwise direct toward the Pacific, precisely where China least wants them.
It worked for about two years. Now the regional balance Beijing spent years constructing lies in pieces.
“Both Venezuela and Iran showed China that the U.S. has both the resolve and the capability to achieve its objectives,” Yun Sun, senior fellow and director of the China Program at the Stimson Center told Newsweek. “The decisiveness and the decapitation campaigns shocked many in China.” That calculus matters most in the context of Taiwan—though neither Iran’s nor Venezuela’s armed forces remotely approaches the People’s Liberation Army, which commands nuclear weapons, the world’s largest navy and a two-million-strong ground force.
China has been forced to confront the realization that infrastructure and investment, however grand, cannot substitute for political stability. And now, with a diminished Iranian threat potentially allowing Washington to finally execute the long-
discussed “pivot to Asia,” the military dimension of China’s bet looks worse still.
The history of Diego Garcia is less idyllic than the island appears. Uninhabited until first settled by Europeans in the 18th century and used as a staging post for the slave trade between southeast Asia and Africa, the atoll’s modern story begins in the 1960s, when Britain and the United States decided they needed a base in the Indian Ocean far from the politics of any sovereign nation. The Chagos Archipelago, controlled by the British, seemed ideal. There was just one problem: people lived there.
Between 1968 and 1973, roughly 1,500 to 2,000 Chagossians were removed from their homes. Families were relocated to Mauritius and the Seychelles with little money and no choice. Livestock was destroyed. Hundreds of pet dogs were gassed. What rose in their place was a joint U.S.-U.K. military base that would go on to serve as one of the most strategically important installations in the world—a launch platform for B-52 bombers in the Gulf War, a staging ground for the 2003 Iraq invasion and a forward base for nuclear submarines whose precise activities are classified and likely to remain so. More recently it’s been the launching pad for stealth B-2 bombers.
For decades, the moral reckoning for this displacement sat in legal limbo. Then, in 2019, the International Court of Justice concluded that Britain’s continued administration of the Chagos Archipelago was unlawful. The U.N. General Assembly followed with a 116-to-6 vote demanding London hand the islands over to Mauritius, the nation with the strongest historical claim. Britain resisted. Then, quietly, it stopped resisting. In 2025, British Prime Minister Keir Starmer signed an agreement to transfer sovereignty to Mauritius while securing a 99-year lease permitting the continued operation of the base.
It looked, to many people, like a tidy resolution—colonial guilt addressed, strategic access preserved, everyone satisfied. It was not.
What the negotiators failed to fully account for was the strategic dimension—and that failure, sources say, reflects a broader weakness in the current generation of U.K. political advisers, who are, in the blunt assessment of Olsen, mostly focused on U.K. domestic politics and “quite unskilled in international affairs and particularly on strategic questions. They basically don’t understand the world. There is no level of Machiavellianism.”
The anxiety that few in polite diplomatic circles are willing to voice directly stems from the fact that Mauritius has, by almost any measure, been more comprehensively penetrated by China than any other small nation on earth.
In 2018, President Xi Jinping made a personal visit to the island—a rare honor for a country of around 1.3 million people, noteworthy precisely because Mauritius is not formally part of China’s Belt and Road Initiative, the trillion-dollar infrastructure-and-influence program that Beijing has used to embed itself across Asia, Africa and Latin America.
Beijing has been scrupulous about leaving Diego Garcia’s military base out of any official pronouncements. But Indian analysts—who watch Chinese behavior in the Indian Ocean more carefully than almost anyone—read that silence not as disinterest but as deliberate strategic opacity. “China never mentions Diego in any formal communiqués,” an Indian analyst told Newsweek, requesting anonymity as the situation was politically very sensitive. “It is something worth noting.” They interpret Beijing’s conspicuous silence as indicating it has, in their words, “some ulterior plans.”
The concern among Western strategists is not that China would march troops onto Diego Garcia the moment Mauritius assumed sovereignty. It is subtler and more plausible than that: surveillance infrastructure embedded in telecommunications networks, intelligence relationships cultivated over decades of training Mauritian government officials, the slow accumulation of access that stops well short of a formal military foothold but achieves many of the same ends.
The realization of Diego Garcia’s strategic importance arrived late in the U.K.
“This is strategic incompetence supported by tactical stupidity,” Cleo Paskal of the Washington, D.C.-based Foundation for Defense of Democracies told Newsweek. “It’s like they think they’re living in some cloak-and-dagger novel as opposed to living in the real world with real people and real stakes.”
The push to hand Chagos to Mauritius was driven by two forces within the British government. The first was genuine anti-colonial sentiment—a sense that the expulsion of the Chagossians was an old injustice that a modern Britain should remedy. The second, less publicly acknowledged, was a desire to de-risk. U.K. officials were reportedly concerned about being drawn into operations launched from Diego Garcia that might run counter to international law. Handing sovereignty to Mauritius while retaining a lease seemed like an elegant way to have it both ways.
When the global stakes became clear, it produced the unusual spectacle of a Labour government being held up by its own House of Lords—members who were, as Olsen put it, “very, very annoyed” and whose procedural resistance bought time for a reconsideration that had not been planned.
Washington recognized, also belatedly, that it had a problem and began moving to address it—in fits and starts. Bilateral security discussions that were due to take place with Mauritius in Port Louis in late February to bless the deal, led by the State Department’s Bureau of Political-Military Affairs with interagency participation, were “postponed,” according to the minutes of a meeting of the government of Mauritius.
Then on February 18, President Donald Trump issued a blistering post on Truth Social dressing down Starmer for initially declining to allow Iran strikes from Diego Garcia, and applying sustained pressure on the sovereignty deal itself. It was the loud edge of a quieter and more systematic American push. Starmer ultimately authorized “defensive” U.S. missions from the base. The sovereignty deal remains unresolved, and the U.S. is trying to recover lost ground. Mauritius has been selected as the location for the 2026 U.S.-Africa Business Summit in July—a choice analysts consider loaded with symbolic intent.
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India’s strategy in Mauritius—and more broadly across The Indian Ocean—is to position itself as the credible, equal-minded alternative to Chinese influence: developmental partnerships rather than debt traps, institutional relationships rather than infrastructure leverage. Having watched China displace Indian influence in the Maldives and Sri Lanka through precisely the kind of patient economic embedding it has practiced in Mauritius, New Delhi is trying to compete more aggressively for the loyalties of Indian Ocean island states.
“India recognizes the strategic game,” said an analyst who requested anonymity due to Indian sensitivities. “They are really annoyed by Chinese activity in the Indian Ocean, how they are working through the Seychelles, the Maldives, Mauritius and the East African coast, and they’re actually trying to push them out. Games are being played very hard behind the scenes.”
The complication, from Washington and London’s perspective, is that New Delhi’s support for Mauritian sovereignty does not translate into support for Western strategic interests at Diego Garcia. India’s anti-colonial instincts run deeper than its strategic alignment with the West—and its ambitions in the Indian Ocean are its own.
It is a remarkable thing to say about a country that is, nominally, a Quad partner—the diplomatic grouping of the U.S., India, Japan and Australia—and a key element of American Indo-Pacific strategy. But the Indian Ocean has always had its own logic, and the Chagos dispute has exposed how little the West’s various bilateral relationships translate into a coherent strategic coalition when the geography gets specific.
And Diego Garcia is only the most visible piece of that much larger game. The same strategic logic that makes the atoll worth fighting over applies across a dozen other flashpoints, most of them small enough to miss on a casual glance at the map.
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An old naval joke holds that an American carrier group, pushing through fog at night, sights a light dead ahead. The officer on watch orders the vessel to change course. The reply comes back calm and unhurried: “Negative, alter your course to avoid collision.” The carrier commander, irritated, identifies himself and his warship—capable of launching dozens of aircraft, projecting power across oceans, the most formidable instrument of force in human history—and repeats his demand: “I say again, divert your course.” A final response arrives: “I’m a lighthouse. Your call.”
The joke is apocryphal, but the point it makes is not: Sea power matters, but geography matters more. Ships move; coastlines do not.
China’s Belt and Road Initiative was premised on a theory about how the world was changing: that infrastructure was the new empire, that trade routes and port leases and telecommunications contracts could build a web of influence capable of rivaling anything the Americans had assembled since the end of the Second World War. Over the past decade, over 150 countries signed Belt and Road agreements. Chinese firms financed ports in Sri Lanka, Pakistan and Kenya. A military base opened in Djibouti. Freight trains began running from Chinese industrial cities across Kazakhstan and Russia to Europe.
The initiative rested on an assumption that the world would remain stable enough for these long-distance networks to function, and that the United States—exhausted, distracted and politically fractured—would not aggressively contest the expansion. For several years, that assumption looked safe.
It no longer does. The strikes that shattered Iran’s government removed a Chinese energy anchor and diplomatic linchpin from the Middle East. The operation that ended Maduro’s government in Venezuela demonstrated that infrastructure investment is not the same as political protection. Ports, pipelines and railways are expensive to build. They are difficult to defend.
However, instability can cut both ways. “China is very much concerned with the unstable situation with Iran, in particular as it’s directly interrupting the energy supply not only of China but also Asian countries and impacting the global oil market,” Xu Qinduo, senior fellow at the Beijing-based Pangoal Institution, told Newsweek. He noted that China’s aggressive push into renewable energy provides a longer-term buffer—and that if the Iran operation proves messier than expected, Washington may find itself needing Beijing’s help to stabilize the region rather than confronting it further.
“All in all, I don’t see that China seeks competition with the U.S. in a confrontational manner,” Xu said. “China still concentrates on its domestic construction in all aspects to strengthen itself. At the same time, it also helps improve its image by being a source of stability and the party who follows international law and who is predictable.”
None of the American moves—Iran, Venezuela, the pressure on Cuba, the fight over Diego Garcia—were launched with a single, declared anti-China logic. Trump’s critics describe them as chaos; his defenders describe them as instinct. What they are, in aggregate, is a systematic disruption of the political and geographic conditions on which Belt and Road depend.
The struggle over a remote atoll with no inherent value of its own is a preview of that contest: a world where every piece of ground is a move in a game whose endgame no one can fully see. The great powers are not competing over ideology anymore, or even primarily over trade. They are competing over the physical map—the atolls, the shoals, the ports, the chokepoints through which everything that matters passes.
Geography, long taken for granted by a nation that spent three decades as the world’s only superpower, is once again destiny. And in the new great game taking shape between Washington and Beijing, it may be the loneliest dots on the map—the ones nobody wanted, until suddenly everyone did—that tip the balance.
Illustration by Gregori Saavedra for Newsweek
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