Colombia - A Clash on the Border - NYTimes.com Colombia's Ministry of Defense said Friday that Colombian rebels were responsible for killing an Ecuadorean Army officer and wounding a soldier during a border skirmish on Thursday. Five guerrillas were killed in the clash, which occurred in Sucumbíos Province, Ecuador, on the border with Colombia. Ecuador's government expressed "outrage and dismay" and warned the rebels, believed to be members of the Revolutionary Armed Forces of Colombia, or FARC, that it would be "relentless" in the defense of its territory.