How twelve-gun British battleships reshape the arms race

How would British battleships carrying twelve 15-inch guns influence foreign designs?

The United States would likely jump toward twelve 16-inch guns and South Dakota-scale ships, while triple turrets spread into Hood and perhaps Renown and Repulse, complicating later treaty limits.

Tennessee's twelve 14-inch guns would look less impressive beside British twelve-gun 15-inch ships, making an eight-gun Colorado appear inadequate. American designers would probably seek twelve 16-inch weapons and much larger hulls. British follow-on battlecruisers would also face pressure to adopt triples, raising the displacement baseline that treaty negotiators must freeze or reduce.