Why other navies filled the sloop niche differently

The Royal Navy expected destroyers to serve with the fighting fleet while sloops handled patrol, convoy escort, and anti-submarine duties. The United States Coast Guard already operated cutter-sized ships, reducing the pressure on the US Navy to create the same category. Japan concentrated on major battle units, while Italy treated comparable hulls as large torpedo boats. Britain's global empire created a distinctive demand for economical warships that could appear in distant waters without extensive local infrastructure. These different institutions and missions prevented the treaty opportunity from producing one international sloop formula.