July 1542: A punitive expedition of two hundred Spanish soldiers, a dozen horsemen and ten thousand Guarani warriors under the command of Cabeza de Vaca set out from Asuncion against the Guaycurues, a tribe that refused to make peace with the Spanish and the Guarani. The expedition achieved a victory but stopped short of destroying the military power of the Guaycurues. Cabeza de Vaca hoped a display of military prowess by the Spanish would convince the Guaycurues to make peace with the Spanish.

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july 1542: a punitive expedition of two hundred spanish soldiers, a dozen horsemen and ten thousand guarani warriors under the command of cabeza de vaca set out from asuncion against the guaycurues, a tribe that refused to make peace with the spanish and the guarani. the expedition achieved a victory but stopped short of destroying the military power of the guaycurues. cabeza de vaca hoped a display of military prowess by the spanish would convince the guaycurues to make peace with the spanish.