 Nyorai mberi kweiyi ndima - Caballero akabatana neParaguayan Army muna 1864 uye akarwa muParaguayan War. Akatora chikamu muMato Grosso Campaign. Gare gare akava mubatsiri weMutungamiri Francisco Solano López muHumaitá uye akaramba akavimbika, akakwira kuburikidza nematanho. Akava mutungamiri anokosha zvikuru wezviito zvepashure, pakupedzisira achiva mukuru wevatasvi vemabhiza. Caballero akanga ari gamba guru rehondo riri kurarama, uyo akabatwa nevaBrazil musi waApril 8, 1870 pedyo nerwizi rweApa mushure meHondo yeCerro Corá uye akasunungurwa muna May 1871. Mukati mokusungwa kwake akava noushamwari navaBrazil uye kutsigira kwavo kwezvematongerwe enyika uye kwechiuto kwakanga kuchikosha gare gare, mukati mebasa rake rezvematongerwe enyika. 