Tolima Department
The People's Revolutionary Army (, ERP) was a small Marxist guerrilla organization in Colombia. 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. The group became a military objective of paramilitary. The Colombian government wanted the group for rebellion, kidnappings and extortion crimes.