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Filibuster War: Battle of Santa Rosa

When
1856
Where
Santa Rosa, Costa Rica
Episodes
1

The Battle of Santa Rosa occurred on March 20, 1856, in Costa Rica. It was a victory for Costa Rican forces against William Walker's filibuster advance force. This engagement was part of the broader Filibuster War, also known as the National Campaign of 1856–1857, which arose from Walker's territorial ambitions in Central America.

Episodes

  1. March 20, 1856 · Santa Rosa, Costa RicaBattle of Santa Rosa

    Costa Rican forces defeated Walker's advance force on March 20, 1856, in Costa Rica.

Background and detail

The Battle. Walker's advance force was defeated at the Battle of Santa Rosa on March 20, 1856. This engagement occurred during the National Campaign of 1856–1857, a conflict fought in Central America between 1855 and 1857. The battle was a significant early victory for Costa Rica against Walker's filibuster forces.

Strategic Context. The battle was part of a broader campaign in which Costa Rican forces fought to expel Walker. Walker had previously captured Granada in October 1855 and established a government with Patricio Rivas as president, though Walker held real power. The conflict lasted until Walker's surrender in May 1857.

People involved

Sources

  1. William Walker (filibuster) Wikipedia, revision of 2026-10-03
  2. Filibuster War Wikipedia, revision of 2026-09-12
  3. Battle of Santa Rosa Wikipedia, revision of 2026-09-13
  4. Juan Rafael Mora Porras Wikipedia, revision of 2026-09-04

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.