 In 1864, the time of the Paraguayan War, the Military Colony of Dourados was destroyed by the Paraguayans, and Lieutenant Ribeiro was killed.In 1872, after the end of the Paraguayan War, the border between Brazil and Paraguay was definitely established, leaving the region of Ponta Porã in Brazilian territory.In 1880 arrived in the region Mr. Nazareth, a military commander who established his camp in what is now the city of Pedro Juan Caballero.