Eastern Bloc of the FARC-EP

The Eastern Bloc of the Revolutionary Armed Forces of Colombia, from September 2010 known as Bloque Comandante Jorge Briceño, in honour of the slain guerrilla leader, is considered by many to be the strongest military faction of the guerrilla group. It is divided into groups of 50-400 combatants in each group which patrol and control different areas of Colombia's Eastern and Central-Eastern territory, as well as helping to carry out the killing, taxation, and arrests necessary to advance the organization's financial and political goals. The specific divisions of the group are arguable. Some of the believed divisions or 'fronts', as they are commonly called, are shown below. Many of these fronts sometimes work together towards a certain mission, while others are further divided into 'columns' and 'companies' with a smaller number of members. For more general information see FARC Chain of Command.

This group of commanders is sometimes called the "EMBO" (Estado Mayor del Bloque Oriental). The United States Department of Justice and the Government of Colombia offer rewards for all of them.

Also known as the Armando Ríos Front, it is composed of around to 400 people. It operates mostly in the Guaviare Department.

Also known as the Jacobo Prías Alape Front, it is composed of up to 400 people. It operates mostly in the Meta Department.

Also known as the Guadalupe Salcedo Front, it is composed of up to 300 people. It operates mostly in the Arauca Department. Several police officers infiltrated one of the FARC’s 10th front camp in early 2008, preparing an attack on the camp by a police squadron. The attack came on July 29, killing 'Jurga Jurga', FARC commander and friend of FARC head ‘Mono Jojoy’. The ground offensive was follow by an airforce attack, killing 20 guerrillas, unofficial sources said. On October 22, 2011, members of the front killed 10 Colombians soldiers in an ambush in Arauca. On March 17, 2012, alleged members of the 10th front killed 11 members of the Colombian army. Security forces launched an offensive few days after the attack: on March 20, 3 alleged member of the FARC are killed and 4 captured by the army. On March 21, 33 FARC members were allegedly killed and 5 others captured.

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