How an early Yamato disclosure could revive the Lion class

The Royal Navy already had the Lion design available, so confirmed intelligence on Yamato's scale could have redirected wartime effort toward 16-inch battleships. Resources could shift away from later King George V-class and Vanguard work as the Lions became the direct heavy-gun response. Accelerated carrier construction would supply the air strikes needed to slow a Japanese battle fleet before the capital ships engaged. A stronger Force Z built around Lions, carriers, and fast reconnaissance ships becomes plausible if disclosure delays Japan's decision for war. The counterfactual shows how secrecy protected Yamato from provoking the Allied procurement response it was meant to overmatch.