Commonwealth capital ships challenge treaty arithmetic

What if British Dominions signed the Washington treaty separately and retained their own capital ships?

Their fleets would complicate treaty ratios and might force the United States to accept a larger Commonwealth capital-ship total.

Canada retains Queen Elizabeth-class battleships, Australia keeps a battlecruiser, and New Zealand holds its own ship. Those vessels would be politically difficult to scrap after Dominion governments or publics had paid for them. Separate signatures could force negotiators to decide whether each navy received its own allowance or counted inside Britain's total. The United States might still accept the arrangement to secure a construction holiday and its savings. The resulting Commonwealth force structure would also redistribute capital ships across the Atlantic, Mediterranean, and Pacific in a later war.