Washington has been arming the crap out of Colombia for years all in the name of the “war on drugs”.
Off the top of my head, and everyone can check wikpedia, but the Colombian military's structure is built around mostly counter-insurgency assets such as Vietnam era light strike aircraft and helicopters. All very logical in a drug war scenario.
If the US was arming Colombia to the teeth to threaten or balance Venezuala's massive procurement of modern Russian fighters and the like, you would have seen gifted F16's or F18's by now.
But we have not. So I don't see your connection.