William Walker

William Walker was an American adventurer who led private military expeditions in Central America and ruled Nicaragua from 1856 to 1857.

Filibuster (military): A private military adventurer who leads an unauthorized expedition into foreign territory. Walker became the best-known American filibuster through his invasions of Nicaragua.
Manifest Destiny: The nineteenth-century belief that United States expansion across North America was justified or inevitable. Expansionist rhetoric supplied a wider rationale for Walker’s interventionist ambitions.
José Santos Guardiola: A Honduran military and political leader who opposed Walker’s influence in Central America. Guardiola represents the regional resistance Walker’s campaigns provoked.
Central American Campaign against Walker: The coalition military effort by Central American states to defeat Walker’s forces in Nicaragua. Shared resistance to Walker helped turn his invasion into a regional war.
Nicaraguan Civil War (1854–1857): A conflict between Nicaraguan political factions that drew in foreign forces and ended with Walker’s defeat. Walker entered this war as an ally and turned factional conflict into a bid for power.
Nicaragua Canal route: A proposed interoceanic passage across Nicaragua using river, lake, and land transport. The route’s commercial value made Nicaragua a target for foreign influence and Walker’s designs.
Patricio Rivas: A Nicaraguan politician who served as president during Walker’s rise and later broke with him. Rivas’s presidency gave Walker’s intervention an initial claim to political legitimacy.
Second Battle of Rivas: An April 1856 battle in which Costa Rican forces fought Walker’s army near Rivas, Nicaragua. The battle became a defining episode in Costa Rica’s campaign against Walker.
Legitimist Party: A Nicaraguan political faction opposed to the Democratic Party during the civil war of the 1850s. The Legitimists helped organize the coalition that expelled Walker.
Nicaragua Transit Company: A company that transported passengers across Nicaragua between the Caribbean and Pacific coasts. Its operations gave foreign interests leverage in the country Walker sought to control.

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