Battle of Acosta Ñu

The Battle of Acosta Ñu (Guarani: Acosta Ñu ñorairõ), also known as the Children's Battle (Spanish: Batalla de los Niños) in Paraguay and the Battle of Campo Grande (Portuguese: Batalha de Campo Grande) in Brazil, took place on 16 August 1869. It was the last major engagement of the Paraguayan War between the Triple Alliance and Paraguay.