Battle of Campichuelo
Part of Paraguay campaign
Military operations in Paraguay (in Spanish)
Date 19 December 1810 Location Campichuelo, near Encarnación, Paraguay Result Provinces of the Río the la Plata victory
Belligerents
Provinces of the Río de la Plata[a]	Intendency of Paraguay[b]
Commanders and leaders
Manuel Belgrano	Pablo Thompson
Strength
800 soldiers	500 soldiers
^ The Provinces of the Río de la Plata were loyal to the Junta of Buenos Aires. ^ The Intendency of Paraguay was loyal to the Council of Regency of Spain and the Indies.

The Battle of Campichuelo was a skirmish that took place on 19 December 1810 when the military expedition sent by the Primera Junta crossed the Paraná River from Candelaria to Campichuelo de la Candelaria, where a Paraguayan outpost was positioned. The action ended without casualties from either side.

The Primera Junta, established in Buenos Aires after the May Revolution, launched a military campaign to ensure Paraguay's adherence, in the belief that a majority of Paraguayans supported it. The army was sent under Belgrano's command on 24 September.

Because Paraguayans had removed all boats on the Paraná River along its borders, Belgrano's forces had to build boats from leather, some canoes and large wooden rafts suitable to carry 60 men and four cannon, as the crossing was expected to be opposed. The river was 1000 meters wide at the crossing point, and the current would carry them a league and a half downstream, to Campichuelo hill. The passage started at 11:00 pm on 18 December, when a force of 12 men surprised the enemy, taking two prisoners and some weapons. The main crossing took place from 3:00 am until 6:00 am on 19 December under the command of Major General Machain, forcing the enemy to abandon their position.^[1]