Canadian Prime Minister Mark Carney made an impassioned pitch in the Australian parliament for middle powers like Canada and Australia to build new coalitions in the “ruptured” global order that are less reliant on the United States.

In a post-rupture world, the nations that are trusted and can work together will be quicker to the punch, more effective in their responses, more proactive in shaping outcomes, and ultimately more secure and prosperous. The question for middle powers like us is whether we preserve existing rules, write new rules to determine our security and prosperity, or let the great powers increasingly dictate outcomes.

In a post-rupture world, the nations that are trusted and can work together will be quicker to the punch, more effective in their responses, more proactive in shaping outcomes, and ultimately more secure and prosperous.

The question for middle powers like us is whether we preserve existing rules, write new rules to determine our security and prosperity, or let the great powers increasingly dictate outcomes.

Carney made a compelling case. So, how exactly would new coalitions of middle powers work, and which countries could Australia work with more closely?

The world order has “ruptured”, Canadian Prime Minister Mark Carney has warned – so it’s time for countries like Australia and New Zealand to forge a new, less US-reliant future. In this six-part series, we’ve asked top experts to explain what that future could look like – and the challenges that lie ahead.

Why middle powers need to work together

This enthusiasm for middle power coalitions poses some uncomfortable questions for Australia, given it requires a re-examination of our most important ally, the United States.

In defence terms, Australia remains reliant on Washington’s presence and military capabilities in the Indo-Pacific region. Much of our own military hardware simply cannot function without the US.

Stepping away from the US alliance completely is not an option. This is why Canberra has expressed support for recent US and Israeli strikes in Tehran, while not participating in them.

Yet, Canberra can – and should – build up other relationships to hedge against dependence on an increasingly unreliable US. We can do this in areas such as trade, conflict prevention and international law.

And with great powers increasingly willing to breach international law, middle powers have a great responsibility. By........

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