February 26 - The Revolutionary Armed Forces of Colombia or FARC announces that it has abandoned kidnapping and will soon release its last remaining captives.
April 15 - The U.S. Secret Service announces it has put 11 agents on leave while it investigates alleged "inappropriate conduct" in Cartagena before the 6th Summit of the Americas there attended by U.S. PresidentBarack Obama. It emerges that five soldiers[clarification needed] are also facing investigation.
April 16 - The U.S. military's top officer Martin Dempsey speaks of being "embarrassed" and tells a Pentagon news conference "we let the boss down" in relation to allegations that United States Secret Service agents habitually associated with prostitutes in Colombia. Pentagon spokesman George E. Little tells reporters that the number of military staff involved could be more than the five originally reported.
April 19 - An agent at the center of the U.S. prostitution scandal in Colombia denied one of his escorts $770 from an agreed fee of $800, according to The New York Times, thus prompting the row that revealed the scandal to the public.
April 21 - The U.S. Secret Service dismisses three more employees over the prostitution scandal involving U.S. agents at last weekend's 6th Summit of the Americas in Colombia.
April 23 - White House lawyers launch an internal investigation into the role its advance staff may have played in the U.S. Secret Service sex scandal in Colombia, though no evidence has been found to implicate anyone in the scandal.
April 27 - The Revolutionary Armed Forces of Colombia (FARC) kills eight people in two separate attacks.
April 29 - The Revolutionary Armed Forces of Colombia (FARC) kills four members of Colombian Army on a mission to destroy cocaine laboratories in Caquetá Department with another four soldiers, a police officer and a French journalist missing.
August 26 - A General Agreement for the Termination of the Conflict and the Construction of a Stable and Lasting Peace is signed by representatives for the Colombian government and FARC in Havana, Cuba as apart of the Colombian Peace Process.
November 20- The Revolutionary Armed Forces of Colombia (FARC) announces a unilateral temporary ceasefire with the Colombian Government until January 20, 2013.
December 11 - The Senate approves a constitutional amendment, modifying Articles 116, 152, and 221 to expand the military's jurisdiction over criminal acts.[6]
December 28 - The constitutional amendment approved by the senate on December 11 is put into effect as Legislative Act No. 2 on Military Jurisdiction. [6]
