The Asset We Are Not Using

The prevailing framing of the UK Overseas Territories in British policy is one of legacy and liability. They are the remnants of empire, creating constitutional obligations that generate diplomatic complications and financial costs without obvious strategic return. They require defence commitments the UK can ill afford to sustain. They create friction in international relationships: with Spain over Gibraltar, with Argentina over the Falklands, with the United States over Caribbean financial regulation. They are, in this framing, a burden to be managed rather than an asset to be developed.

This framing is wrong. It is strategically wrong, practically wrong, and — at a moment when the UK's resilience needs have never been more acute — an expensive missed opportunity.

The fourteen Overseas Territories give Britain something that no purely European power possesses: a distributed physical presence across five ocean regions, spanning the Caribbean, Atlantic, Mediterranean, Indian Ocean, Pacific, and Antarctic. That presence is underused, underdeveloped, and undervalued. The question is not whether Britain can afford to invest in the territories' resilience. It is whether Britain can afford not to.

The Strategic Footprint Argument

Consider what the territories represent in purely geographic terms. British Indian Ocean Territory sits at the intersection of the Indo-Pacific's most contested strategic space. The Falkland Islands anchor Britain's claim to South Atlantic presence at a moment when competition for Antarctic access and resources is intensifying. Gibraltar controls the entrance to the Mediterranean. The Caribbean territories span the region where US-China competition for hemispheric influence is most active. Ascension Island sits in the middle of the Atlantic — a communications and logistics relay point of quiet but genuine significance.

None of these positions were chosen for their current strategic value. They are the accidents of history. But history's accidents have produced a genuinely useful global footprint that would be impossible to replicate from scratch. The question is whether the UK is organised to make use of it.

Pre-positioned logistics capability at territory locations would reduce response times for humanitarian and military assistance across multiple ocean regions. Communications infrastructure at territory sites would strengthen the resilience of global networks that the UK depends on. Maritime surveillance capacity from territory positions would give Britain eyes across strategic waterways that it currently monitors only partially. None of this requires large permanent garrisons; it requires investment in the infrastructure that makes the territories operationally useful rather than merely constitutionally present.

The Self-Sufficiency Imperative

The Caribbean territories' experience demonstrates what genuine self-sufficiency requires. An island community that can be cut off from external supply chains for weeks by a single weather event needs to be able to sustain itself across energy, water, food, and medical care for longer than the event lasts. The Cayman Islands has made significant progress on some of these dimensions: its desalination capacity, its fuel storage, and its healthcare infrastructure. It has significant remaining vulnerabilities on others.

Developing genuine self-sufficiency in the territories is not a charity exercise. It is a resilience investment with returns that extend beyond the territories themselves. A territory that can sustain itself through a major event without UK assistance is a territory that does not require UK emergency expenditure after the fact — post-event humanitarian and reconstruction costs consistently dwarf the cost of prior resilience investment. The arithmetic is not complicated.

There is also a less obvious return. The engineering and operational knowledge required to build genuinely self-sufficient communities in challenging environments — islands with limited land, extreme weather exposure, and supply chain fragility — is directly transferable to environments where self-sufficiency is not merely desirable but essential. The development of resilient, self-contained habitats as a response to climate change represents one of the significant engineering challenges of the coming century. The territories are existing test environments for exactly this challenge: places where failure is recoverable, where the constraints are real rather than simulated, and where the learning is operational rather than theoretical.

The Distributed Testing Ground

The Overseas Territories are not simply dependencies that draw on UK resources; they are potential contributors to the UK's resilience in ways that have never been strategically developed. In the Second World War, incapacitation of the British mainland would not immediately have ended Britain's ability to function because the wider network of territories and dominions provided depth, redundancy, and operational reach. The modern territories are smaller and constitutionally different, but the underlying principle still holds: a distributed network of British jurisdictions across five ocean regions is a resilience asset if the UK chooses to treat it as one.

The resilience challenges the territories face are not uniform. The Caribbean territories operate under hurricane exposure, supply chain fragility, and — in the case of the Cayman Islands — a complete absence of rivers or aquifers. St Helena and Pitcairn face extreme isolation, limited transport links, and logistical constraints that make self-sufficiency a necessity rather than an aspiration. South Georgia and the British Antarctic Territory add a further dimension entirely: environments defined by extreme cold, high winds, ice loading, and the need for structures and systems that can maintain life in conditions far beyond anything encountered in the UK.

That diversity is not a weakness. It is a testing ground. The engineering required to keep these communities functioning — autonomous power, water independence, localised food production, hardened communications, and structures capable of withstanding extreme environmental stress — is the same engineering the UK will increasingly need as climate volatility, geopolitical pressure, and supply chain fragility intensify. These are not theoretical laboratories. They are British communities already living the resilience challenges the UK will face in more places and more frequently in the decades ahead.

"If the UK invests in the territories' resilience, it is not simply supporting distant communities. It is building capability, knowledge, and infrastructure that strengthen the UK's own resilience posture."

What Genuine Integration Would Require

The first requirement is institutional: a body with explicit responsibility for the integrated resilience picture of the Overseas Territories. The proposal for an Office of National Resilience, submitted as written evidence to the House of Lords Select Committee on National Resilience in March 2026 (ref. NLR0007), addresses this directly. An ONR with a defined Overseas Territories mandate would be the first formal mechanism for bringing the territories into the national resilience framework.

The second requirement is analytical: territory-specific risk assessments integrated into the National Security Risk Assessment process. The territories face distinct threat profiles — meteorological, geopolitical, infrastructural, and economic — that are currently assessed, if at all, in isolation from each other and from the national picture.

The third requirement is standards: a minimum resilience framework applicable across all territories, adapted for their specific constitutional positions and resource capacities, but establishing a floor below which no British community should be permitted to fall.

The fourth requirement is investment: a dedicated territory resilience funding stream that is not absorbed into the FCDO's diplomatic budget or treated as discretionary expenditure. Hurricane Irma's direct strike on the British Virgin Islands in September 2017 — the most destructive event for a UK Caribbean territory in recent decades — required a UK government response of over £57 million across the affected Overseas Territories. That figure covered only the immediate response; reconstruction and recovery costs were substantially higher and ran for years. The pattern is consistent: the cost of inadequate prior resilience investment is vastly higher than adequate investment would have been.

The fifth requirement is exercise: a cross-territory exercising programme that tests not just local arrangements but the UK's ability to respond across the full range of scenarios, including geopolitical pressure scenarios, not only natural disaster scenarios. CARIBE WAVE demonstrates that cross-jurisdictional, multi-territory exercising at scale is achievable. A genuine UK cross-territory exercising programme would build on rather than duplicate these regional frameworks, extending them to cover the full threat envelope and integrating the learning into UK national resilience planning.

"The cost of inadequate prior resilience investment is consistently vastly higher than the cost of adequate investment would have been."

The Moment for This Argument

The argument for genuine integration of the Overseas Territories into the UK's national resilience framework is not new. What is new is the urgency. The Resilience Action Plan has been published and is being implemented, but it does not address the territories. The geopolitical environment has deteriorated in ways that make the assumption of allied protection for British territory interests less reliable than it has been at any point in the post-war period. Climate change is accelerating the physical threats facing the Caribbean and South Atlantic territories on timescales that are now within infrastructure planning horizons.

The window for proactive investment in territory resilience — before the next major hurricane, before the next sovereignty challenge, before the next geopolitical pressure campaign — is open but not unlimited. The pattern of British resilience policy is to respond to events rather than to anticipate them. The pattern of events is to be more severe, more rapid, and more interconnected than the planning assumed.

The territories are British communities. Their people hold British citizenship. Their resilience is a UK responsibility — constitutionally, morally, and strategically. The question is whether the UK will treat it as such before the next crisis forces the point, or only after.