US President Donald Trump launched a scathing attack on the United Kingdom, describing its decision to transfer sovereignty over the Chagos Islands in the Indian Ocean to Mauritius as a “great folly.” Trump’s remarks, made via his social media platform Truth Social, criticized the 2024 agreement, arguing that relinquishing these strategic territories poses a threat to national security. He linked the move to his broader geopolitical vision, which includes a renewed desire for the United States to acquire Greenland.
Linking Chagos to the purchase of Greenland
In his controversial post, Trump not only criticized the British move but also used it as a pretext to bolster his long-standing argument that the United States should purchase the Danish island of Greenland. Trump wrote, “The United Kingdom giving away such vital territory is a very foolish act, and yet another of a very long list of national security reasons why we should acquire Greenland.” This connection reflects Trump’s mindset, which views geopolitics through the lens of large real estate deals and direct influence, seeing direct control of territory as a stronger security guarantee than traditional alliances or long-term leases.
The strategic importance of the Diego Garcia base
The danger, according to the US administration and many military experts, lies in the strategic importance of the Diego Garcia air and naval base, located in the Chagos archipelago. This base is one of the most important US and British military assets in the world, playing a pivotal role in military operations in the Middle East, East Africa, and the Indo-Pacific region. It has served as a launchpad for long-range strategic bombers during the Gulf and Afghan wars and provides vital logistical support for submarines and warships.
Although the British-Mauritian agreement includes a clause allowing the military base to remain operational for 99 years, critics, led by Trump, fear that the transfer of sovereignty could open the door in the future to the influence of rival powers such as China, given the growing economic ties between Mauritius and Beijing.
Background of the historical conflict
The origins of this dispute date back to 1965, when Britain separated the Chagos archipelago from Mauritius three years before the latter's independence, creating what became known as the British Indian Ocean Territory. This was followed by the forced removal of the islands' indigenous inhabitants (the Chagosians) to make way for the construction of a US military base, a human rights violation and a source of international dispute for decades. In 2019, the International Court of Justice issued a non-binding advisory opinion stating that Britain's occupation of the islands was illegal, increasing international pressure that ultimately led to the signing of the handover agreement in 2024.
Trump’s remarks serve to highlight the tension between adherence to international law and ending the colonial era on the one hand, and maintaining strict Western military and security interests in the face of fierce international competition on the other.


