Global defence bank talks: UK in discussions to join Canada-led scheme

Britain is in active talks to become a founding member of a new international defence bank spearheaded by Canada, in a move that could unlock cheaper financing for military spending at a time when NATO allies are under mounting pressure to boost their defence budgets.

The proposed institution, which is still being shaped behind closed doors, would allow participating governments to pool their creditworthiness and secure loans at lower interest rates than they could typically obtain on their own. Several European nations are understood to be watching the discussions closely, though the UK’s potential involvement would give the scheme considerable political and financial weight.

How the defence bank would work

The core idea is straightforward. Governments borrowing individually to fund defence projects often face steeper rates, particularly those with weaker credit ratings. A multilateral bank, modelled loosely on institutions like the European Investment Bank, could issue bonds collectively and pass the savings on to member states. Analysts have suggested the arrangement could shave between 0.5 and 1.2 percentage points off borrowing costs, which, across multibillion-pound procurement programmes, adds up fast.

NATO members have committed to spending at least 2% of GDP on defence. But many are still scrambling to hit that target, and the costs of modernising armoured fleets, upgrading air defences and expanding naval capabilities are eye-watering. The bank’s supporters argue it’s a practical fix to a very real fiscal problem.

“Arrangements like this have a proven track record in other sectors,” a senior Western defence official said. “There’s no reason the same logic shouldn’t apply to security investment.”

What it means for the UK

For Britain, joining would be a signal of intent. The government has already pledged to raise defence spending to 2.5% of GDP by 2027, a commitment that carries a price tag in the tens of billions. Any mechanism that reduces the cost of that borrowing won’t be turned down lightly.

Still, questions remain. It’s unclear how governance would be structured, which countries would qualify for membership, and whether the US — notably absent from early conversations — would eventually come on board.

Negotiations are expected to accelerate through the summer, with a formal proposal potentially tabled at a NATO gathering later this year.