Rising speed, sensor, stabilization, and weapon demands push fleet destroyers toward cruiser-like size and cost. The type divides into cheap escort destroyers, general-purpose fleet destroyers, and large leaders that absorb the work of small cruisers. The escorts emphasize anti-submarine warfare and local air defense, while fleet ships retain torpedoes and may add guided rockets or missiles. Capitani Romani- or Tribal-sized leaders can act as scouts and pickets for less money than a new light cruiser. This division explains why the smallest cruiser category fades even as destroyer numbers and missions expand.
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Destroyers divide into fleet and escort roles
Destroyer development produces larger fleet ships with guided weapons alongside cheaper escort types optimized for convoy and anti-submarine duties.