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.

For a second consecutive day Dec. 10, thousands of protesters continued to occupy Plaza Bolívar, the central square in Bogotá, to oppose the removal of the Colombian capital's populist mayor, Gustavo Petro. A left-wing populist and former guerilla fighter, Petro was ordered to step down by Colombia's Prosecutor General Alejandro Ordoñez—officially over irregularities in a reform of the city’s garbage collection system. Under the decision, Petro is barred from holding public office for 15 years. But Petro told his supporters in the plaza, "I am still mayor," and assailed Ordoñez's decision as a "coup against democracy." Protesters pledge to remain in the plaza until the decision is overturned, with banners reading "Respect my vote," and accusing the conservative Ordoñez of being a "golpista" (coup-plotter.)

Two gunmen described as sicarios (hired assassins) killed Juan Álvaro Pai, a traditional governor of the Awá indigenous people, in an incursion into the resguardo (reserve) Inda Guacaray, in Colombia's southern Nariño department, Nov. 30. The gunmen arrived in the resguardo on a motorcycle, immediately made for Pai's home, and upon finding him fired six bullets into his body. Víctor Gallo, mayor of local Tumaco municipality, demanded that the Fiscalía (public prosecutor) and National Police open an urgent investigation, protesting the atmosphere of "impunity" that allows aggression against the Awá. In early July, Awá held a public demonstration, blocking the Pan-American Highway for a week, to protest the violence directed against their communities by various armed actors in Colombia's civil war. 

Colombia's government and the FARC rebels signed a landmark agreement on Nov. 6 that is supposed to guarantee the guerrilla group's political participation. The accord is the second of six foreseen pacts to end nearly 50 years of civil war in Colombia. "We have come to a fundamental agreement about the second point of the agenda," FARC and government negotiators said in a joint statement read by the Norwegian delegate, one of the mediators at the peace talks in Havana. The pact, which comes just two weeks before the one-year anniversary of the opening of the talks, outlines "guarantees for the exercise of the political opposition in general and in particular for the new movements that arise after the signing of the Final Agreement." Details are not be made public until a final deal has been signed.

The area of land planted with coca leaf in Colombia has fallen by 25%, and is now about a third of that in 2001, according to the latest report from the UN Office on Drugs and Crime (UNODC)'s Integrated Illicit Crops Monitoring System. The report finds that land planted with coca has dropped from 64,000 hectares in 2011 to 48,000 hectares in 2012, the lowest figure since monitoring started in Colombia more than a decade ago. Although the National Police actually eradicated less coca than in previous years, the force increased its presence in coca-growing regions, apparently preventing campesinos from planting coca in the first place. But while coca areas fell nationwide, they rose in three departments still especially wracked by armed conflict—Norte de Santander, Chocó and Caquetá.

Three of FARC’s most senior figures on Aug. 1 admitted that their rebel group  has made mistakes, an apparent step towards an apology for crimes committed by the guerillas. In an interview published on the rebel group's website, FARC commanders "Ivan Marquez," "Pablo Catatumbo" and "Rodrigo Granda" talked about the possibility of apologizing, something the FARC so far has refused to do in spite of numerous sentences for war crimes and violations of international humanitarian law. It is Catatumbo who admitted that "we have made mistakes, some serious indeed... I have no problem in telling a woman or a family: 'I feel sorry about the pain we have caused with the death of your loved one.'" 

Colombian President Juan Manuel Santos on July 25 intervened in the public hearing of the Constitutional Court to defend the Framework for Peace, a constitutional amendment that brought about peace talks with the FARC rebels. Rights groups, including the Colombian Commission of Jurists (CCJ), challenged the amendment because it vests the congress with the discretion to decide which acts of war are applicable to the justice system. According to the CCJ and Human Rights Watch (HRW), this discretion could lead to loopholes that allow violent criminals to escape justice. Santos defended the amendment as a vital prerequisite for peace, "Our commitment to the expectations and rights of the victims is serious," Santos said. "It's not about sacrificing justice to reach peace but how to achieve peace with the most justice." The representative for the CCJ responded, "In this case the cure could end up being worse than the disease." The Constitutional Court's decision has not yet been released.