May Revolution
The May Revolution was a direct reaction to Spain's Peninsular War. In 1808, King Ferdinand VII of Spain abdicated in favor of Napoleon, who granted the throne to his brother, Joseph Bonaparte. A Supreme Central Junta led resistance to Joseph's government and the French occupation of Spain, but eventually suffered a series of reversals that resulted in the Spanish loss of the northern half of the country. On February 1, 1810, French troops took Seville and gained control of most of Andalusia. The Supreme Junta retreated to Cadiz and dissolved itself, and the Council of Regency of Spain and the Indies replaced it. News of these events arrived in Buenos Aires on May 18, brought by British ships.
History of Paraguay
Among the many causes of the May Revolution were Napoleon's invasion of Spain in 1808, the capture of the Spanish king, Ferdinand VII, and Napoleon's attempt to put his brother Joseph Bonaparte on the Spanish throne, which severed the major remaining links between the metropolis and the colonies as Joseph had no supporters in Spanish America. Without a king, the entire colonial system lost its legitimacy, and colonies revolted. The Buenos Aires open cabildo deposed the Spanish viceroy on May 25, 1810, vowing to rule in the name of Ferdinand VII. The May Revolution led to the creation of the United Provinces of the Rio de la Plata which wanted to bring Province of Paraguay under its control. This "porteño" action had unforeseen consequences for the histories of Argentina and Paraguay. News of the revolutionary events in Buenos Aires stunned royalist citizens of Asunción. Discontent with the Spanish monarchy was put aside because of the much bigger rivalry with the city of Buenos Aires.