 The British spy-network only heard about this place a few days before the start of the reaction, and was too late to attack Perdriel, only accelerating the fight for reconquest.When Santiago de Liniers arrived back from Montevideo and started the Reconquest, on 12 August, he was joined by Álzaga's secret army, and the British were rapidly defeated.Beresford's surrender came in early and the viceroyalty was saved.