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