The Colombian army has about 130 helicopters - total. Of those about 50 are Black Hawks, most of which were supplied years ago, and another 50 are UH-1H which were supplied donkey years ago.
If there's an arms race going on it's from the Venezuelan side which has been purchasing large numbers of aircraft and tanks of late - and whjo are the one's who have been mobilised and moved up to the border.
It's Chavez who's sabre rattling, largely to distract attention from the massive problems he has at home with inflation, electricity shortages etc.