The "Comandante Diego" Front of Colombia's second largest rebel group the ELN detonated explosives Jan. 1 at four crude-oil holding pools along the Caño Limon-Coveñas pipeline at Convención in the Norte de Santander department. A large blaze caused by the attacks created panic among the local population, who were forced to flee their homes, according to local media reports. Authorities are taking measures to prevent further environmental damage after the attacks, as well as reconstruct the damaged holding pools. The ELN  has been coordinating with the FARC in attacks on Colombia’s oil production infrastructure for the past few months, declaring war against multinational oil companies operating in the country last November. (Colombia Reports, Jan. 2; Radio Caracol, Jan. 1)

Colombia's oldest rebel group FARC has undergone significant changes concerning military strategy since entering the ongoing peace talks with the government, according to a new report. The report by think tank Fundación Paz y Reconciliación which was partly released in national newspaper El Espectador on Dec. 17 revealed how the rebel organization changed their military strategies, adapting to the rhythm of this year's peace talks. "In September and October when the negotiations were in a crisis due to a lack of progress concerning the point of political participation, [the FARC] launched a minor offensive, attacking the oil and energy infrastructure that left Tumaco 20 days without power. This shows that the operational capacity of the FARC is not that decimated," the report was quoted in El Espectador.

The Fiscalía, Colombia's public prosecutor, on Dec. 9 formally charged a notorious drug kingpin for masterminding several massacres between 1988 and 1994 in which hundreds of people were killed. The crimes, dubbed the Massacre of Trujillo after the town where they were committed in Valle del Cauca department, resulted in the deaths of up to 342 people. Among the victims were unionists, alleged guerrilla supporters, and a priest. Some of the victims were tortured and dismembered as a warning to rebel groups FARC and ELN, and their sympathizers. Diego Montoya AKA "Don Diego" is accused of conspiring with members of the army, police, regional politicians and paramilitary groups aligned to the infamous Cali Cartel. Several members of the security forces have also been charged for their alleged role in the killings.

An activist tribunal dubbed the Ethical Trial against Plunder (Juicio Ético contra el Despojo) was held in Bogotá over the weekend to air testimony against the practices of multinational gold firm Anglo Ahshanti (AGA) and oil giant Pacific Rubiales Energy (PRE). More than 500 representatives from across Colombia convened in the capital's central folk-crafts market, the Plaza de los Artesanos, to present evidence that the multinational corporations were involved in the murder of union leaders, displacement of indigenous communities, and grave environmental damage. The objective was to gather enough evidence to be able to put forward an real legal case.

Two explosions shut down Colombia's 80,000 barrel-per-day Caño Limon-Covenas oil pipeline, state-controlled oil company Ecopetrol said July 5, with a military source describing them as attacks carried out by leftist rebels. The explosions on Colombia’s second largest pipeline, used by US oil producer Occidental and owned by Ecopetrol, had no immediate impact on production or exports in Latin America's fourth largest oil producer, according to an Ecopetrol official. No details on how much crude was spilt by the explosions or the environmental damage was immediately available, the Ecopetrol official said.

Colombia's largest coal miner, Cerrejon, said Feb. 24 that rebels broke into its facility at Mina Sur, La Guajira department, and burned four of the company's trucks in what it called a "terrorist attack." The attack came four days after the company declared force majeure in the face of work stoppage that began on Feb. 7. Cerrejon, a joint venture between Anglo American, BHP Billiton and Xstrata, operates Colombia's largest open-pit mine, and has frequently been the target of guerilla attacks. Both the FARC and ELN guerilla groups operate in the zone. In 2012, Cerrejon produced around 34.6 million tons of coal, half of which was exported to Europe. (Colombia Reports, Feb. 24; Energy Global, Feb. 20)

After tense negotiations, the Red Cross transported to safety Feb. 15 two Colombian National Police agents being held by the FARC guerillas since Jan. 25. The release had been delayed due to large groups of journalists in the vicinity of the drop-off point according to leader of Colombians for Peace (CCP), Piedad Cordoba, who helped broker the negotiations. The armed forces had ceased military activity around Miranda in the southwest Cauca department to provide safe passage for the Red Cross. The humanitarian mission will next fly to Pasto to secure the release of a soldier captured by the FARC on Jan. 31 during clashes in southern Nariño department. (Colombia Reports, Feb. 14)

Norma Enríquez, a leader of the Permanent Assembly of Civil Society for Peace, an umbrella of Colombian NGOs and popular organizations, on Feb. 10 called on the government to include the National Liberation Army (ELN) in the talks now underway in Havana with the FARC guerillas. Enríquez told the Mexican news agency Notimex that failure to include the ELN "would be to risk marginalizing one of the expressions of the conflict from the peace dialogue." Initial contacts between the government and the ELN, brokered by the Catholic Church, apparently broke down in November, when the guerilla group took hostage two German nationals in Santander department. (Notimex, Feb. 11; Sexenio, Mexico, Feb. 10)