Alexander Díaz, alias “Calarcá Córdoba,” is the commander of the General Staff of the Blocs and Front (Estado Mayor de Bloques y Frente – EMBF), a Colombian criminal organization whose roots trace back to the country’s armed, leftist guerrilla movement. What’s in this profile:Recent News on Calarcá Córdoba August 4, 2026 — Prosecutors Charge ‘Calarcá Córdoba’ With Multiple Crimes Colombian prosecutors charged Alexander Díaz Mendoza, alias “Calarcá Córdoba,” in absentia over his alleged involvement in homicides, kidnappings, forced disappearances, torture, and the recruitment of minors, among other crimes. Calarcá Córdoba later served in the Eastern Bloc’s special troops, known as tropas especiales in Spanish. Calarcá Córdoba steadily rose through the ranks, becoming third-in-command of the FARC’s 40th Front by 2013. After Gentil Duarte was killed in 2022, Calarcá Córdoba took command of the EMC’s Jorge Suárez Briceño Bloc.