"In southern Colombia, FARC said it had captured a former U.S. Marine in El Retorno on 19 July, but was willing to release him to senator Piedad Cordoba to show commitment to the peace talks. A statement by the U.S. government said the man was in the area as a tourist, not as a part of a military mission. Historically, the United States has aided the Colombian military. In the town of El Doncello in southwest Colombia, a battle between the army and FARC left 4 soldiers and 6 FARC members dead on 20 July. Three other soldiers were injured and two rebel fighters were captured. Hours later, about 70 rebels ambushed a group of government soldiers guarding an oil pipeline on 20 July in El Mordisco, a rural area of Arauca in eastern Colombia. Fifteen soldiers were killed in the attack and twelve rebels were captured. The government attributed the attack to FARC activity. Overall, 20 July was the deadliest day since peace talks began."@en . "In southern Colombia, FARC said it had captured a former U.S. Marine in El Retorno on 19 July, but was willing to release him to senator Piedad Cordoba to show commitment to the peace talks. A statement by the U.S. government said the man was in the area as a tourist, not as a part of a military mission. Historically, the United States has aided the Colombian military. In the town of El Doncello in southwest Colombia, a battle between the army and FARC left 4 soldiers and 6 FARC members dead on 20 July. Three other soldiers were injured and two rebel fighters were captured."@en . . . . . . "the Colombian conflict"@en . "2013 Colombian clashes"@en . "6"^^ . . "--07-21"^^ . . . . "2013"^^ . "15"^^ . . "Colombia"@en . "Colombian government"@en . . .