Landing-platform dock policy illustrates the damage caused when governments optimize for immediate savings rather than the fleet a later generation will need.
The Sea Otter continued a proven British biplane line because its missions rewarded utility and handling more than the monoplane performance represented by the Kingfisher.
Atlanta's loss arose from a chaotic close-range battle, while the transferable British advantage was collective prewar experience in night coordination rather than an invulnerable technique.
Britain preserved design knowledge by building cruisers continuously, while American and Japanese construction gaps traded institutional memory for a cleaner restart.
A slightly larger weapon remained possible, but 21 inches offered most navies the workable balance of performance, launcher weight, and shipboard handling.
Congress funded battleships as symbols of national power while postponing cruisers and destroyers until wartime shortages forced emergency construction.
Soviet participation makes a complete breakdown the most likely result; a surviving agreement requires a narrow compromise between incompatible naval demands.
Adding the Soviet Union would leave three democracies and three authoritarian governments negotiating naval limits amid the financial pressures of the Great Depression.
Railway investment and imported machinery could support an earlier fleet program, while the Kirov class shows both Soviet design capability and dependence on foreign technology.
Northern European hull forms and Italian machinery offered a basis for Soviet designs that could serve the Baltic, Northern, Pacific, and Black Sea fleets.
Britain kept its battle fleet concentrated near major support bases and relied on cruisers for worldwide presence, making cumulative cruiser limits a strategic problem rather than a simple economy.
Neither leading navy would simply grant Moscow a Japanese-sized fleet and leave its own strength unchanged, because Soviet ships create new risks around India, trade routes, and the Pacific.
Three capital ships per fleet would give Stalin a twelve-ship minimum, forcing the other powers to choose between larger treaty totals and unrestricted Soviet construction.
Twelve Japanese and twelve Soviet battleships push Britain and the United States toward twenty each, preserving the individual 5:3 ratio and permitting five new ships apiece.
Larger cruiser totals satisfy important British and American negotiating demands, but still fall short of Britain's ambition for seventy capable new cruisers.
At most six early Soviet capital ships might approach service by 1939, with yard capacity, regional investment, and foreign equipment limiting progress.
Italy's standing as a major naval supplier and innovator makes its machinery and fire-control expertise a plausible foundation beneath Soviet-built hulls.
Earlier treaty construction could bring the United States quickly to a North Carolina-like battleship whose basic pattern already suited American strategic and operational needs.
A 270,000-ton allowance gives Britain and the United States room for larger carriers with stronger flight decks, or additional hulls if the main design comes in below the individual limit.
Extra tonnage supports more County- and Town-class cruisers, but British battleship caliber and layout remain constrained by Parliament, public expectations, and earlier gun development.
France could build enlarged Suffren-derived fast ships instead of Dunkerques, while Soviet purchases might help Italy accelerate the Littorio program and its successor generation.
Three treaty battleships could give Japan both immediate 16-inch-gun strength and an earlier industrial foundation for the much larger Yamato-class program.
A larger Japanese fleet still faces fiscal and crewing limits, and greater strength could produce either restraint or more aggressive insecurity after 1936.
If the 1939 Soviet-Japanese fighting gains a naval dimension, it could reveal Japanese capabilities early while exposing the geographic weakness of a Soviet four-fleet structure.
A submarine or aviation pivot would provoke specialized Allied counters, while weak aerial torpedoes and divided procurement authority still obstruct coherent German execution.
Avoiding a naval challenge might keep Britain out of an initial continental war, but German and Italian dominance after a French defeat could force later intervention.
Construction beginning in 1930 gives the future Allies an industrial head start that undercuts German commerce raiders and leaves Soviet military industry stronger even beyond the fleet.
The enlarged treaty system would also force choices by the Netherlands, Sweden, Spain, South American navies, China, and the British dominions about buying ships or expanding local yards.
Uncertainty over the naval treaty system prompted the Royal Navy to study a largely forgotten generation of capital ships before 1930, including designs whose surviving record may be incomplete.
Pressure for cheaper battleships came especially from political leaders, while naval constructors and admirals still had to produce ships capable of surviving against existing heavily armed opponents.