Defense Priorities Defense Priorities
  • Policy Topics
    • US-Israel-Iran
    • Ukraine-Russia
    • Western Hemisphere
    • NATO
    • China
    • Syria
  • Analysis
    • Research
    • Q&A
  • Programs
    • Grand Strategy Program
    • Military Analysis Program
    • Asia Program
    • Middle East Program
  • Experts
  • Events
  • Media
  • About
    • Mission & Vision
    • People
    • Jobs
    • Contact
  • Donate
Select Page
Home / Grand strategy / The Mauritius-UK Chagos agreement is a good deal for the U.S.
Grand strategy, Europe and Eurasia

January 22, 2025

The Mauritius-UK Chagos agreement is a good deal for the U.S.

By Peter Harris

Speculation is rife that U.S. President Donald Trump might block an agreement between Britain and Mauritius to resolve their long-running dispute over the Chagos Archipelago in the central Indian Ocean. The United States has a stake in the Chagos group because the largest island, Diego Garcia, is home to a strategically important U.S. military base. For decades, Britain has administered the Chagos Islands with the explicit purpose of ensuring that the Pentagon can use Diego Garcia unimpeded. With London poised to return the islands to Mauritius, the United states is understandably anxious to see that its privileged military position is not lost.

The problem is that most of the world regards London’s presence in the Chagos Islands as unlawful, owing to an International Court of Justice (ICJ) advisory opinion that found Mauritius to be sovereign over the archipelago. Eager to conform with international law, London has agreed to return the islands to Mauritius on the condition that Port Louis will permit Britain to continue making Diego Garcia available to the U.S. military.

The deal is a “win-win-win-win” in the sense that it guarantees the formal decolonization of Mauritius; allows Britain to bring itself into alignment with international law; secures the future of the U.S. base on Diego Garcia; and paves the way for the indigenous people of the Chagos Islands—the Chagossians—to resettle parts of the archipelago for the first time in more than 50 years.

But critics of the deal have been vocal in their opposition. Britain’s right-wing press is adamant that Mauritius has no claim to the Chagos group (although convincing refutations of the ICJ’s ruling have been conspicuous by their absence). In both London and Washington, bad-faith actors have sought to smear Mauritius as an ally of China. This is nothing but baseless fearmongering given that Mauritius has no security relationship with China, but it has allowed critics to contrive the narrative that U.S. interests are in jeopardy.

Read at The Diplomat

Author

Photo of Peter Harris

Peter
Harris

Non-Resident Fellow

Defense Priorities

More on Western Hemisphere

In the mediaWestern Hemisphere, Venezuela

Budgetary Costs of U.S. Military Operations in Venezuela, the Caribbean, and the Eastern Pacific, August 1, 2025 – March 31, 2026

Featuring Jennifer Kavanagh

April 23, 2026

Op-edCuba, Western Hemisphere

Trump can get a win in Cuba, but not with military force

By Adam Gallagher

April 23, 2026

In the mediaWestern Hemisphere

Trump Has Already Spent at Least $4.7 Billion Attacking Latin America

Featuring Jennifer Kavanagh

April 23, 2026

Op-edWestern Hemisphere, Mexico, Venezuela

Trump Is Getting His Way in Latin America. But Bully Tactics Have a Cost—and the Bill Is Coming Due

By Daniel DePetris

March 30, 2026

Q&AGrand strategy, Cuba, Western Hemisphere

Will U.S. pressure lead to regime collapse in Cuba?

By Daniel DePetris

March 27, 2026

In the mediaCuba, Western Hemisphere

¿Podría Cuba resistir una intervención militar de EE. UU.?

Featuring Daniel DePetris

March 24, 2026

Events on Grand strategy

See All Events
virtualGlobal posture, Grand strategy, Military analysis

Assessing the 2026 NDS: What comes next?

February 9, 2026
virtualEurope and Eurasia, Asia, Grand strategy

Assessing the 2026 NDS: Alignment with restraint?

February 9, 2026
virtualNATO, Alliances, Burden sharing, Europe and Eurasia, Grand strategy

Assessing the 2026 NDS: Will it usher in burden shifting?

February 9, 2026

Receive expert foreign policy analysis

Join the hub of realism and restraint

Expert updates and analysis to enhance your understanding of vital U.S. national security issues

Defense Priority Mono Logo

Our mission is to inform citizens, thought leaders, and policymakers of the importance of a strong, dynamic military—used more judiciously to protect America’s narrowly defined national interests—and promote a realistic grand strategy prioritizing restraint, diplomacy, and free trade to ensure U.S. security.

  • Research
  • Experts
  • About
  • For Media
  • Jobs
  • Donate
  • Privacy Policy
  • Terms and Conditions
  • Contact
© 2026 Defense Priorities Foundation. All rights reserved.