Colombia says

We saw yesterday how the military ruler of Venezuela decided to break relations with Colombia after the Colombian government submitted to the Organization of American States evidence of FARC havens in Venezuelan territory.

Here you can see a satellite map and some interesting pictures of what the Colombia government says are FARC bases in Venezuelan territory.

My bet: those bases will be moving from there now. Nobody will be able to get in fast enough as the Venezuelan military keeps a grid on many areas in Venezuela. There is enough time to clean it up.

I am preparing a longish post on the border region that may be of some interest.