Exile to a latter-day Devil's Island contradicts the history and spirit of an enduring relationship. This year is the centenary of that relationship. In appalling conditions, the Anzacs found a unity beyond the artifices of national boundaries, and sustained it in Belgium and France, and 25 years later in North Africa and the Pacific. We gave it unity in the first Anzac Treaty, infuriating some in the American military.
Each decade since we have acted together in international politics and economics, whether in Iraq today or in the 1960s when great leaders Jack McEwen and John Marshall responded to European developments with the first Nafta treaty.
We should not forget that all through our joint history, people have moved without hindrance between Australia and New Zealand. How else would we have shorn the sheep, or mined the gold and coal? The existence of such a clear, natural right perhaps seemed to make the case for closer relationships less urgent. The requirement for passports was introduced only in the 1970s. Others - such as the European Union - followed our example.
How things have changed. Australian residents believed they were living in an Australasian community. Having served their time, without warning they are treated equally with foreign aliens. Such exile is redolent of imperial Rome. It runs counter to the instincts and practice of any British polity founded on a tradition of habeas corpus, let alone fair play.
The answer lies with our governments. They can correct a dire situation by completing the process which has been running since the 19th century and further integrating, economically and socially, our two nations. What an opportunity to make history and correct injustice.