Apparently, some in the U.S.-trained, armed, funded Colombian military, and/or in the Pentagon, sought to sabotage the peace talks.
Also posted by you:
Military commanders investigated over FARC attack that killed 11 soldiers
May 24, 2015
Colombias Inspector Generals office has opened an investigation against nine members of the military, suspecting their negligence and omission attributed to the killing of 11 soldiers in a recent FARC attack.
The investigation is over a series of faulty information reported by the military and a lack of witness testimonies on an alleged FARC ambush that left 11 uniformed soldiers and two guerrillas dead on April 15 in the municipality of Buenos Aires in the province of Cauca.
Inspector General Alejandro Ordoñez probe will cover three main areas of focus, namely whether there was a failure to follow precautionary protocol, whether key details on the attack were omitted from the militarys report, and whether weapons were hidden from the initial investigators from the forensic prosecution investigators. (MORE)
http://www.democraticunderground.com/110840946
This was the incident that sparked the air attack on the FARC. It appears that it was a trumped up incident--and I suppose that such things are to be expected in a 50+ year civil war in which the U.S. has made itself a party to one side, and poured billions of our tax dollars into the Colombian military killing Colombians. So much corruption, on so many levels, will not easily yield to peace.
Hang in there, peacemakers!