A large concentration of Dominion battleships creates a second problem for the Royal Navy: keeping its own battle line stronger than the fleets within the Empire. Retaining older 13.5-inch ships would become less satisfactory as the United States moved toward a 16-inch line. G3 and N3 appear as possible British responses in this counterfactual. French and Italian construction would still matter because Britain had to protect Mediterranean routes. Those regional choices would then feed into American and Japanese responses, keeping the wider competition moving.
Notable Point · 3:49:28-3:52:15
How Dominion battleships could drive an escalating design race
The expanded Dominion fleets would put pressure on Britain's own battle line and feed a cycle of larger American, British, and Japanese designs.