There he met with Ramón Emeterio Betances, Juan de Mata Terreforte and Aurelio Méndez Martinez and together they proceeded to plan a major coup. The uprising, which became known as the Intentona de Yauco was to be directed by Betances, organized by Aurelio Mendez Mercado and the armed forces were to be commanded by General Juan Ríus Rivera from Cuba.
He encountered Ramón Emeterio Betances, Juan de Mata Terreforte, and Aurelio Méndez Martinez, and together they planned a major rebellion. The uprising, known as the Intentona de Yauco, was to be led by Betances, organized by Mendez Mercado, and commanded by General Juan Ríus Rivera from Cuba.