Naval Historywith Dr. Alex

Q&A · 40:05-41:00

A treaty-breaking American battleship restarts the arms race

An American 32-knot battleship armed with twelve 18-inch guns would collapse treaty restraint and force Britain to match it while pushing Japan into a severe crisis.

BattleshipsImperial Japanese NavyNaval Arms RaceNaval TreatiesRoyal NavyUS Navy
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Question

What happens if the United States ignores treaty limits in the early 1930s and builds a 32-knot battleship with twelve 18-inch guns?

Short answer

The treaty system collapses, Britain builds a costly match, and Japan faces an acute industrial and strategic crisis.

Notes

The proposed ship would openly breach the naval treaty system. Once the United States built it, the other major powers would have little reason to remain within the existing limits. Britain would endure the cost and produce a matching answer, especially if construction began early enough for yards and skills left from Nelson and Rodney to remain available. Japan would face the greatest pressure because its industrial base would struggle to answer a new race at that scale.