The bloc operates in much of the area that borders with Ecuador and Peru, with some supposed incursions into foreign territory.
The government suspects that many FARC leaders may be hiding in the jungles protected by the South Bloc.
In March 2012, the group was held responsible for taking a French journalist, Roméo Langlois, as an hostage during an attack in which 4 Colombian soldiers were killed.
On September 19, 2010, the National Police reported the death of more than 20 guerrilla combatants from this front.
[13] Two suspected member were children, probably kidnapped by FARC: 12-year-old Jimmy Lee, a Colombian refugee in Ecuador, and 15-year-old Doris Carolina Cadena Benarcazar, an Ecuadorian citizen from Carchi Province.
[14] Ecuador denounces the recruitment of Ecuadorean minors into the ranks of Colombia's FARC guerrilla group.
According to the Colombian newspaper El Tiempo, the Yesid Ortiz Mobile Column was created by fusing remnants of the Teofilo Forero Mobile Column, the 3rd and 14th fronts into a single group which were weakened by the Military of Colombia as part of the Plan Patriota.
The main objective of this unit according to El Tiempo is to recover lost territory in the Department of Caqueta.