 The Saavedrist hegemony was short @-@ lived . The military defeats of Castelli and Belgrano started a new political crisis , and the First Triumvirate replaced the Junta Grande as the executive power , and then closed it completely . The former supporters of Moreno ( Belgrano , Dupuy , Tomás Guido , Beruti , Monteagudo , French , Vicente López ) would later support the campaign of José de San Martín . The Argentine war of independence would give room to the Argentine Civil War between unitarians and federals . Saavedrists like Martín Rodríguez , Ortiz de Ocampo , de la Cruz — and even Saavedra himself — became unitarians . Manuel Moreno , French , Agrelo , Vicente López , and Pancho Planes opposed both the First Triumvirate and the presidency of unitarian Bernardino Rivadavia . Manuel Moreno and Tomás Guido , in particular , worked in the government of the most powerful federal leader , Juan Manuel de Rosas . 
