 Months thereafter, Sotillo and Monagas fought together in the territory of La Mesa de Guanipa in April 1861.That same year, in October, he signed a short truce, well known under the name of the Treaty of Santa Ana, with general José Maria Zamora's forces.However, Sotillo took up arms to fight in the battle of Las Chaguaramas, on 3 April 1862, where he was once more defeated and his son Miguel was mortally wounded.