Britain and America rearm when Japan leaves the treaties

What is built if Britain and the United States abandon naval treaties as soon as Japan does?

Britain accelerates larger-gunned battleships and additional carriers, creating a much stronger prewar fleet that Germany cannot match.

The King George V class could resemble an early Lion with nine 16-inch guns. A second Ark Royal and the Illustrious class might also enter service sooner because treaty caution no longer slows the program. Britain would begin the war with more fast capital ships and carriers while the United States accelerated in parallel. Germany then confronts Anglo-American shipbuilding capacity already operating at emergency speed, making Plan Z even less credible.