Despite high numbers of Colombian Armed Forces in Arauca Department, there are several illegal armed groups operating with impunity. In light of escalating violence over the past two weeks, we are urging that the government reevaluate the mission of the Colombian Armed Forces in Arauca and investigate whether there are ties between members of the Colombian Armed Forces and other armed groups operating in Arauca. Such ties have been suggested by residents of high conflict areas of Arauca. Our letter was prompted by several reports of violence in Arauca, including the assassinations of these social leaders: January 19 - José Avelino Pérez Ortiz, a local leader of the Joel Sierra Human Rights Foundation (JSHRF), was killed in a rural area outside of Arauca municipality; January 25- Álvaro Peña Barragán, president of the Community Action Board of La Union village in Saravena municipality, was killed in a rural zone outside of Tame municipality; January 26 - Rosalba Carmenza Tarazona Ortega, the widow of Álvaro Peña Barragán, was assassinated at her mother-in-law’s house during the wake for her dead husband; February 1 - Hermán Naranjo Quintero, member of the Community Action Board of Corocito (Tame municipality), was kidnapped by armed men. His dead body was discovered the following day.