The battle would end with a Paraguayan victory; but it boosted confidence in the local population to declare themselves independent from both Buenos Aires patriots and royalists months later.

Paraguayan governor, Bernardo de Velasco, refused to recognize the authority of the Board, as a result of an open cabildo in Asuncion that decided to keep the loyalty to the Regency Counsel of Spain.

Unaware of this, and assuming that the Paraguayan patriots were stronger than they were, the Junta sent a small military expedition, commanded by one of its members, Manuel Belgrano, to unite the territory governed by Paraguay, through negotiations or through force.

Belgrano organized his infantry into two rows of 220 and 240 men, and placed Machain's cavalry on the right and Perdriel's on the left (100 riders each).

The patriots were distracted in looting the food stores of the Paraguayan army, so that only half of the force continued to fight, while the defenders were rearming themselves.

To make matters worse, when Belgrano sent reinforcements of about 120 men, under the command of his aide Ramon Espindola, in support of Machain.

And when the successive governments of Buenos Aires is clearly likely to show the other provinces to deny equal rights, Paraguay affirm this trend in a final independence.