The AUKUS partnership, the 2021 deal whereby the United States and the United Kingdom agreed to provide Australia with at least eight nuclear-propelled submarines over the next three decades, has come under review by the U.S. Defense Department.

The prospect of its collapse has generated predictable handwringing among those who welcomed the deepening alliance, and especially among those interested in seeing Australia inject billions of dollars into underfunded, underperforming American and British naval shipyards. But in Australia, an AUKUS breakdown should be a cause for celebration.

After all, there has never been any certainty that the promised subs would arrive on time. The U.S. is supposed to supply three or possibly five Virginia-class submarines from 2032, with another five newly designed SSN-AUKUS-class subs (built mainly in the U.K.) coming into service from the early 2040s. But the U.S. and the U.K.’s industrial capacity is already strained, owing to their own national submarine-building targets and both have explicit opt-out rights.