Nine countries have committed to establishing a new multinational defence bank aimed at providing low-cost, long-term financing to the defence industry and small-to-medium-sized enterprises. The institution, currently known as the Defence Sector Reciprocal Bank (DSRB), counts Canada, Albania, Belgium, Greece, Latvia, Turkey, Luxembourg, Romania, and Ukraine as its founding members. The group is moving toward signing the bank’s charter this November, with plans to become operational in 2027.

The DSRB’s formation marks a strategic effort to fill a financing gap in defence capabilities, offering a mechanism that enables member countries of varying sizes and economic capacities to strengthen their security through equitable access to funding. Canadian officials have emphasized the bank’s complementary role to existing national and multilateral initiatives, highlighting its potential to address challenges not currently covered elsewhere.

Despite this progress, the bank has yet to attract additional founding countries, a point that has drawn some criticism. Observers note the limited involvement of major economies in the group; aside from Canada, no other G7 countries have joined. This contrasts with precedent institutions, such as the International Bank for Reconstruction and Development, which began with 21 founding members, and the Asian Infrastructure Investment Bank, which launched with 50.

A significant factor in the bank’s slow expansion appears to be ongoing negotiations between Canada and the United Kingdom, both of which have pursued separate but related defence financing and procurement initiatives. Canada was initially vying to host the DSRB headquarters, while the UK proposed the Multilateral Defence Mechanism, a program geared more explicitly toward coordinating defence procurement among member states rather than serving as a financing institution. The UK initiative, first announced jointly with Finland and the Netherlands in March, has since added Poland as a founding member.

There had been discussions about potential collaboration or even a merger of the two initiatives, given their overlapping objectives of enhancing defence investment and joint procurement. However, talks that extended over the summer stalled when the UK proposed relocating the DSRB’s headquarters from Canada to Europe and shifting the bank’s focus toward procurement rather than financing. Canada declined these terms, leading both countries to continue developing their projects independently.

Since the UK government change in late July, some diplomatic engagement resumed, but no formal treaty negotiations for the British mechanism have been confirmed. The UK Treasury had previously stated its intention to advance the Multilateral Defence Mechanism quickly, yet updates have been limited.

As the DSRB moves closer to formalization, the coming months will be critical in determining whether additional countries will join the bank and how the separate initiatives pursued by Canada and the UK may evolve in response to shifting strategic priorities.