Trump Criticizes UK's Chagos Islands Agreement, Citing National Security Concerns

President Donald Trump has criticized the United Kingdom's decision to transfer sovereignty of the Chagos Islands to Mauritius, a move that includes the strategic Diego Garcia military base. In a post on Truth Social, Trump described the action as an "act of GREAT STUPIDITY" and suggested it underscores the need for the United States to acquire Greenland.

The agreement, signed in May 2025, allows the UK to lease back Diego Garcia for 99 years at an annual cost of £101 million, ensuring continued operation of the joint US-UK military facility. Prime Minister Keir Starmer emphasized the base's importance to national security, stating the deal provides robust protections, including a UK veto over development and a ban on foreign forces.

Despite initial support from the US administration, with Secretary of State Marco Rubio calling it a "monumental achievement," Trump's recent comments have introduced tension into the transatlantic relationship. In response, a UK government spokesperson affirmed the nation's commitment to national security, highlighting that the agreement secures the operations of the joint base on Diego Garcia for generations.

The Chagos Islands have been under British control since 1814. In the 1960s and 70s, approximately 2,000 Chagossians were displaced to facilitate the construction of the military base. The recent agreement includes plans for a resettlement fund for displaced islanders, though detailed provisions remain unclear.