<prompt> Bhala okuqhubekayo kwalesi sigaba - NgoMeyi 2, 1866, wabamba iqhaza eMpini yase-Estero Bellaco, ukucindezeleka kwendawo lapho amanzi oMfula iParaná ehlangana khona namanzi oMfula iParaguay, lapho isitha saqala khona ukubambezela amabutho ahlangene, efuna indawo engcono yokulwa. Ngo-24 Meyi 1866, wayekhona eMpini yaseTuyutí  <response>: , impi enkulu kunazo zonke eNingizimu Melika, lapho adlala khona indima ebalulekile ekulawuleni isikhungo semishini yezempi yebutho laseBrazil ngokumelene nokuhlaselwa kweParaguay. Wabhala ku-Order of the Day 56: Inkazimulo iwumvuzo oyigugu kunawo wonke wamaqhawe. NgoJulayi 15, 1866, namanje eTuyuti, ama-Allies ayelinde ukufika kwamabutho kaGeneral Count of Porto Alegre, ngenkathi isitha sishaya nsuku zonke. Elimale kakhulu empini futhi enganelisekile ngesikhathi eside sebutho elimisiwe, u-Osório wadlulisela umyalo wamasosha aseBrazil kuGeneral Polidoro da Fonseca Quintanilha Jordão. 