1856 in Costa Rica

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In 1856, Costa Rica faced an invasion by William Walker’s filibusters. Walker, an American adventurer, tried to take control of Nicaragua and spread his influence through Central America. Costa Rica, led by President Juan Rafael Mora Porras, joined with other Central American states to stop him and defend their sovereignty.

A turning point came in March with the Battle of Santa Rosa, where Costa Rican troops won a decisive victory and slowed Walker’s advance. The fighting continued into the next year as Walker’s expedition was pushed back and eventually defeated.

The war strengthened Costa Rica’s national unity and led to reforms in its military and government. Walker was ultimately defeated and killed in 1860, ending his rebel effort. The events of 1856 are remembered as a key moment when Costa Rica defended its independence and stability.