The Battle of Tatayibá was a cavalry engagement between a Paraguayan force led by future president Bernardino Caballero and a Brazilian force led by Luís Alves de Lima e Silva, then Marquis of Caxias.
Hiding their main force in the woods, a few Brazilians lured the Paraguayan cavalry on a three-mile chase.
The Paraguayans were surrounded at Tatayibá, with only a few making it back to Humaitá.
Caballero was promoted to colonel and a medal ordered for his survivors.
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