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CANZUK: A Fringe Idea Whose Time Has Come?

In a more volatile world, closer political, economic and strategic partnership between Canada, Australia, New Zealand and the United Kingdom could benefit all.

In an era where greater middle power cooperation has become more theorized as a way to buttress against ideological and behavior shifts in the United States and the rise of authoritarian China, one previously fringe idea may have found its moment: CANZUK, a proposal for a closer political, economic and strategic partnership between Canada, Australia, New Zealand and the United Kingdom.

The central idea is that the four countries share deep historical, institutional, and cultural ties that would provide a solid platform for a new type of international partnership. They already share similar political systems – Westminster-style parliamentary democracy, common-law legal traditions, and the same head of state in King Charles III. The countries’ public broadcasters – BBC, ABC, CBC, and Radio New Zealand – frequently share content, although they do so through informal partnerships, rather than a unified system. 

Conceptually, CANZUK would sit somewhere between a traditional alliance and a deeper supranational union. Rather than creating a structure like the European Union, CANZUK would instead preserve current elements of national sovereignty while significantly integrating mobility, trade and security cooperation among the four countries. 

Australia and New Zealand already operate something similar to what CANZUK advocates are proposing. Between the two countries there is free movement, work rights, access to government services like healthcare, and students pay domestic, not international, fees. In the early 2000s, Australia did make it harder for New Zealanders to access welfare payments (something Wellington didn’t reciprocate). 

The two countries have a network of highly integrated regulatory institutions, often described as the single economic market, where agencies coordinate standards, share regulatory functions, and mutually recognize each other’s rules. The defense forces of Australia and New Zealand also operate incredibly closely. 

CANZUK would effectively scale this up to include the United Kingdom and Canada. Central to this would be a comprehensive free trade framework between the four countries. Advocates for CANZUK argue that such an arrangement could remove remaining tariffs and regulatory barriers, deepen investment links and facilitate the recognition of professional qualifications across borders – so that occupations like engineers, doctors, teachers, and lawyers trained in one country could practice in another CANZUK countries without additional accreditation. 

Greater diplomatic and strategic cooperation between the four countries would rest on their broad shared worldview: support for liberal........

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