Battle Cruisers and Battleships are Separate Categories in the 1922 Washington Naval Treaty

The alternate treaty begins by separating battlecruisers from battleships, a change intended to satisfy British and Japanese interests while preserving a workable agreement.

British and American naval competition remained a friendly qualitative contest, but the political demand for a peace dividend risked damaging both countries' shipbuilding capacity.

The familiar capital-ship ratios look different when viewed through American two-ocean planning, British imperial commitments, Japanese security, and the Franco-Italian Mediterranean balance.

Contingency plans for an Anglo-American war were professional planning exercises, not proof that either government expected the close relationship to collapse into conflict.

Separating battlecruisers forces a rethink of carrier tonnage, speed, and the conversion of unfinished battlecruiser hulls.

The proposed treaty uses Hood to anchor a 42,000-ton battlecruiser ceiling, raises battleships to 37,000 tons, and expands the carrier allowance to 32,000 tons.

Allowing 12,000-ton, 9.2-inch cruisers gives British and American planners stronger commerce-war tools and makes German pocket-battleship ideas less attractive.

Mediterranean geography makes speed and protection more useful to Italy and France than a separate battlecruiser force, even though France could use one for imperial duties.

The proposal aims for an equitable, not equal, settlement: each navy gives up something but retains enough security and building opportunity to support the treaty.

American negotiators feared Britain could refit its 13.5-inch-gun ships, transfer them to the dominions, and still build a new fleet, so scrapping the older ships helped make fresh British construction acceptable.

The Royal Navy could use separate tonnage pools to build eight fast battleships and several new battlecruisers in staggered orders that preserve design learning and yard capacity.

A steady interwar order cycle keeps yards, skills, and supporting industries alive, reducing the cost of later refits and new construction.

Japan could retain all four Kongos within a separate battlecruiser allowance while gaining room for four new battleships, changing both force planning and perceptions of security.

France may need to cancel unsuitable designs and invest for a better answer to Italian fast battleships, while Italy has a strong case for finishing the Caracciolos and sustaining its industry.

Completing the four Caracciolos could preserve employment and absorb existing material before Italy builds a second generation of fast battleships.

Five Lexington battlecruisers would give the United States a powerful Pacific reconnaissance force, while completion or conversion choices for other hulls shape its battleship and carrier balance.

The label battlecruiser covers reconnaissance ships, battlecruiser-killers, and second-line fleet units whose design balance depends on the navy assigning the mission.

Completing Washington and replacing four older battleships could give the United States a twelve-ship, sixteen-inch-gun core while keeping treaty tonnage nominally balanced with Britain.

Congressional restraint could delay new carriers, but converting America or Washington might pair aviation with the Lexington battlecruisers and redirect destroyer spending.

If the Washington settlement left participants more satisfied, the London Naval Treaty might continue its bargains instead of reopening so many sources of friction.

A world with numerous 28-knot, sixteen-inch-gun British ships and heavier cruisers would make Scharnhorst- and Deutschland-style German commerce raiders far harder to justify.

Different capital-ship allowances leave Britain able to convert its existing light battlecruisers while encouraging larger, more capable carrier designs and different American carrier choices.

With many fast sixteen-inch-gun ships already in service and Japan able to build within the treaty, a 27-knot, eighteen-inch-gun super-battleship is a less compelling answer to the strategic problem.