He formed a division under the command of Colonel José María Paz, intended to form part of the expedition to Upper Peru had Güemes had planned,
In April 1829 General Facundo Quiroga arranged for José María de Echegaray to become acting governor of San Juan to raise troops to fight General José María Paz.
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Governor Joaquín Madariaga gave command of his provincial army to general José María Paz, who in 1841 had obtained an impressive victory at the Battle of Caaguazú in Corrientes.