Donald Trump has urged the United Kingdom not to relinquish control of Diego Garcia, the strategically vital island in the Indian Ocean that hosts a major joint UK–US military base, warning that any transfer could undermine Western security interests.

In remarks addressing ongoing discussions over the future status of the Chagos Archipelago, Mr Trump emphasised the island’s longstanding role in supporting regional stability, counterterrorism operations and maritime security.

He argued that maintaining firm Western stewardship over Diego Garcia is essential to safeguarding freedom of navigation and preserving a strong security posture in the Indo-Pacific.

The comments come amid diplomatic negotiations between London and Mauritius over sovereignty of the Chagos Islands, following international legal and political pressure for Britain to cede control.

While the UK government has indicated it is exploring arrangements that could recognise Mauritian sovereignty while preserving the military base’s operations, the issue remains politically sensitive.

Diego Garcia has been central to joint defence operations for decades, serving as a logistics and surveillance hub for US and British forces.

Analysts regard it as one of the most strategically positioned facilities in the region, enabling rapid deployment across the Middle East, East Africa and South Asia.

Mr Trump framed the matter as a question of long-term strategic foresight, saying Western allies must avoid decisions that could weaken their defensive infrastructure at a time of heightened global competition.

He characterised the base as an indispensable asset and a symbol of enduring Anglo-American cooperation.

The UK government has reiterated its commitment to maintaining the base’s operational continuity regardless of any sovereignty arrangement.

Officials have stated that national security interests remain paramount and that any agreement would ensure uninterrupted defence access for Britain and the United States.

The future of Diego Garcia has broader implications for geopolitical alignments in the Indian Ocean, a region increasingly shaped by major power rivalry and expanding naval activity.

For Washington and London alike, the island represents not only a military installation but a cornerstone of strategic presence in a rapidly evolving security landscape.