How Diego Garcia Became a Strategic Base

In this episode of The Winston Marshall Show, I sit down with journalist and former government adviser Ben Judah to dissect the Chagos Islands deal, Diego Garcia, and the geopolitical battle shaping Britain’s future.

We examine why the UK agreed to hand sovereignty of the Chagos Islands to Mauritius, the role of the International Court of Justice, and how UN decolonisation rulings placed mounting legal and diplomatic pressure on Britain. Judah explains the strategic importance of Diego Garcia, the sensitive US military capabilities based there, and why American officials quietly pushed London towards a settlement.

The conversation explores China’s growing influence in the Indian Ocean, the risk of Mauritius pivoting towards Beijing, and why British officials feared losing access to critical US military infrastructure. We debate sovereignty, international law, national security, and whether Britain was defending its interests or surrendering territory under diplomatic pressure.

We also discuss the future of Britain’s Overseas Territories, proposals to integrate them more fully into the United Kingdom, and whether the Chagos deal reflects strategic realism or managed decline.

A serious and wide-ranging conversation about geopolitics, American power, China’s rise, and whether Britain still knows how to protect its global position.

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Chapters

00:00 Introduction

01:20 The Strategic Importance of Diego Garcia

06:32 The Secret US–UK Deal and “Super Capacities”

09:35 UN Rulings, ICJ Pressure & China’s Role

12:09 Why Washington Forced Britain’s Hand

14:47 Legal vs Military Defence: The China Risk

18:52 Could Mauritius Win a Binding Judgment?

21:17 Why the Americans Might Move the Base

23:10 The Real Prize: UK Access to US Capabilities

28:54 “Everything Changes So Nothing Changes” – Inside the Deal

30:00 Can Mauritius Invite China In?

32:31 Why Rubio, Vance & the Pentagon Backed It

35:29 Trump’s Flip-Flop and the Iran Question

40:31 What If Mauritius Breaks the Agreement?

42:31 Why Britain Is Paying 0.2% of Its Defence Budget

44:33 This Isn’t About Land — It’s About Power

45:30 Legal, Diplomatic & Hard Power Layers of Defence

51:52 Overseas Territories: From Colonies to “Overseas Kingdoms”

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