The group originated in the municipality of Venadillo, Tolima Department in c. 1985 as a splinter group of the National Liberation Army and was commanded by its founder Édgar Castellanos, a.k.a. "Gonzalo" until his death in January 2007.
This organization emerged in the municipality of Venadillo, Tolima Department roughly 1985 as a result of a split from the National Liberation Army and was led by its founder Édgar Castellanos, also known as "Gonzalo", until his death in January 2007