Scotland and the World

Could an independent Scotland defend itself?

Q: Could an independent Scotland defend itself?

Countries Scotland's size defend themselves every day - some in NATO, some neutral, almost none with nuclear weapons parked beside their biggest city. What independence changes is who makes Scotland's defence decisions.

The short answer

Defending a country of five and a half million people is one of the most ordinary things a state does. Norway does it. Denmark does it. Finland does it with a 1,340-kilometre land border with Russia. Ireland does it a short ferry ride away with a fraction of the budget and no military alliance at all.

The question was never whether Scotland could defend itself. The real questions are which model Scotland would choose - and who is making Scotland's defence decisions in the meantime. The answer to the second one, today, is: not Scotland.

What countries like Scotland actually do

The neighbours again, because they keep being useful:

Country	Population	In NATO?	Nuclear weapons on its soil?
Norway	5.6m	Founder member, 1949	No - banned in peacetime since 1957
Denmark	6.0m	Founder member, 1949	No - same policy since the 1950s
Finland	5.6m	Joined 2023 - application to membership in under a year	No
Scotland	5.4m	Via the UK	Yes - the UK's entire nuclear arsenal
Ireland	5.4m	No - militarily neutral	No

Two things jump out of that table. First, there's a working model at every point on the spectrum: full NATO membership with serious armed forces (Norway, Denmark, Finland), or neutrality with a modest defence force (Ireland, which is now raising its budget towards €3 billion a year but staying resolutely non-aligned - RTÉ). Every NATO member now spends above 2% of GDP on defence, and the Nordics are among the alliance's most committed members - Norway now spends more per head on defence than the United States (NATO defence expenditure figures, 2025).

Second: of the countries on that table, the only one hosting nuclear weapons is the one that isn't independent. Norway and Denmark helped found NATO and have declined to host nuclear weapons in peacetime for nearly seventy years - it has never cost them their membership (CSIS). Most NATO members host no nuclear weapons; just five of the thirty-two store US warheads (Center for Arms Control and Non-Proliferation). Hosting is a choice allies make, and mostly don't.

So when someone tells you an independent Scotland would face a stark choice between NATO and having no nuclear weapons on its territory, the North Sea disagrees in both directions.

What Scotland pays now, and what it gets

The UK will spend £62.2 billion on defence in 2025-26 (House of Commons Library). The GERS accounts assign Scotland a population share of that - £5.1 billion in 2024-25 - as its notional contribution to a collective UK defence (GERS methodology).

What lands in Scotland is a different, smaller number: the MOD's own figures put its spending with industry in Scotland at around £2.1 billion in 2023-24 (UK Defence Journal). The two figures measure different things and aren't a clean like-for-like - but the pattern they sketch is real enough. Decisions about where bases go, where ships are built and where contracts land are made in London, for UK-wide priorities. Scotland's defence footprint - Faslane, RAF Lossiemouth, the Rosyth dockyard, frigate-building on the Clyde - exists at the pleasure of those decisions, as more than one cancelled or relocated commitment has reminded Scottish yards over the years.

For comparison: £5.1 billion is several times what neutral Ireland spends on defence, and within sight of what Denmark - a country of six million running full armed forces - spent before Europe's recent rearmament surge. Countries of Scotland's size fund credible defence on Scotland-sized money. They just get to decide what it buys.

NATO: the door and the terms

Would an independent Scotland be welcome in NATO? The most recent evidence is encouraging for those who'd want to join: Finland went from applying to full membership in under eleven months, and the alliance has strong reasons to want the North Atlantic gap - Scotland's neighbourhood, and the route Russian submarines take to the Atlantic - inside the tent (NATO).

Whether Scotland should join is a different question, and this site won't answer it. The Scottish Government's long-standing policy is NATO membership; other parts of the independence movement argue for neutrality or looser arrangements like Ireland's or partnership without membership. That argument - like the currency, like the EU - is one the people of Scotland would settle through elections, after independence puts the decision in Scotland's hands. What the table above establishes is only this: both roads are well-trodden by countries exactly like us, and neither requires hosting anyone's nuclear weapons.

The nuclear question

Now the part of Scotland's defence debate that carries the most weight, morally and practically.

Faslane, on the Clyde 25 miles from Glasgow, is home to the UK's entire nuclear deterrent, with the warheads stored and loaded at Coulport on Loch Long (Navy Lookout). The UK is unusual among nuclear powers in concentrating the whole system in one place - and that place is beside Scotland's largest city. Scotland was not asked; basing decisions are reserved to Westminster, and when the Commons voted to renew Trident in 2016, 58 of Scotland's 59 MPs voted against and it made no difference whatsoever (ITV News). The Scottish Parliament has repeatedly opposed renewal. For many Scots the objection is moral and absolute; for others the base means jobs and security. Both views are held sincerely, and both are currently irrelevant, because the decision doesn't belong to Scotland.

The honest facts, wherever you stand:

Jobs. Around 11,000 jobs are connected to the Clyde base once the supply chain is counted (UK Defence Journal). The number that depends on Trident specifically is much smaller - the MOD stated in response to a freedom of information request that 520 civilian jobs directly rely on it (Nuclear Information Service, UK Defence Journal). An independent Scotland would need a naval headquarters; Faslane is the obvious candidate whatever happens to the warheads.

Removal. It's feasible but not quick. RUSI examined the options and concluded the deterrent could be relocated - Devonport and a new depot near Falmouth being the realistic candidates - at a cost estimated in 2014 at £3-4 billion and taking a decade or more; more recent assessments suggest today's costs would run far higher (RUSI, Navy Lookout). Any removal would be a central piece of the independence negotiations - timetable, costs and terms agreed between Edinburgh and London, as everything else would be.

Opinion. Scots are divided, and it would be dishonest to pretend otherwise. A 2022 YouGov poll found 45% of Scots would keep Trident at Faslane after independence, with 34% wanting it removed and the rest undecided (The Scotsman). Longer-standing polling has shown majorities against renewing the system. The disagreement is real, it runs through the independence movement itself, and it is exactly the kind of question a normal country settles democratically.

Here is what independence changes, and all it changes: today, whether nuclear weapons sit on the Clyde is decided by a parliament where Scotland's 58-to-1 verdict counted for nothing. After independence, it's decided in Scotland - kept, removed, or negotiated on Scotland's terms, by governments Scots elect and can throw out. People on both sides of the nuclear question have a reason to want the decision moved home.

So what's the real question?

Not whether Scotland could defend itself - Copenhagen, Oslo, Helsinki and Dublin answered that long ago, four different ways.

The real question is the usual one: are Scotland's defence decisions better made in Scotland? What to spend, what to join, what to build on the Clyde, and what may be berthed there - every one of those is currently decided elsewhere. Independence doesn't come with a defence policy. It comes with the right to set one.

Take it with you

Facts for sharing - each button copies the line, with its source and a link back to this page.

Norway and Denmark helped FOUND NATO and have declined to host nuclear weapons in peacetime since the 1950s. It has never cost them their membership (CSIS)
Finland went from NATO application to full membership in under eleven months (NATO)
The MOD confirmed in a freedom of information response that 520 civilian jobs at the Clyde base directly depend on Trident (Nuclear Information Service)
When the Commons voted to renew Trident in 2016, 58 of Scotland's 59 MPs voted against. It made no difference whatsoever (ITV News)