the witness turnover.
That crude, and violent stunt by the earlier administration and its military only served to prolong the war, which was the intention.
Colombia had been living so long on US taxpayers' foreign aid it was starting to look as if they intended to keep that war, especially when they started inventing dead "enemies" by killing civilians, then dressing them in FARC gear for "formal" dead counts, as a constant feature in their lives and in their national budget. Clearly, that's what the entire right-wing there and here want.
(Their practice of killing civilians and pretending they are "enemies" as their proof they need a war, is called "false positives". They have killed over 4000 non-military young Colombian men over the past few years to make their war look more valid, luring some of them to locations in promise of a job and then murdering them, sometimes just shooting them where they stood when they were spotted, etc. So damned evil.)
Former Secretary of "Defense" Rumsfeld referred to Colombia as the US "lily pad" country from which operations could be launched in any direction: a "forward operating location." People like him want to make sure that the "lily pads" are under their power, and will pay any price to keep them. Incidently, the people of Colombia have indicated that the "foreign aid" dumped by the boatload into their country hasn't served to improve life in Colombia in any way whatsoever.