"Battle of Alegre" . "*Imperial Army" . . . "Unknown" . . "*border|18pxImperial Navy" . "2Gunboats" . . "840 soldiers" . . . "Battle of Alegre" . "Brazilian Victory" . "*border|18pxParaguayan Navy" . . "6Flat-bottomed boats" . . . . "Gunboat burned" . "1867-07-11" . "3Gunboats" . "*Paraguayan Army" . . . . "*Withdrawal of Paraguayan ships" .