“In the last few months, the rebels had declared a unilateral cease-fire, pledging to stop carrying out attacks, and had promised to stop recruiting child fighters. The two sides had even agreed to work together to find and destroy the thousands of land mines littering Colombia after five decades of war. But suddenly, that progress suffered a major setback when at least 10 soldiers were killed late Tuesday night in what the government said was an attack by the Revolutionary Armed Forces of Colombia, or FARC.”
Source: Killing of 10 Soldiers Deals a Setback to Colombian Peace Talks with FARC Rebels – NYTimes.com