With the situation in Korea sadly warming up, I found this excellent graphic in NationalPost that details North Korea's military equipment.
Whilst much of the equipment is old and out of date compared to the latest and greatest western models, the quantity will have a quality of its own.
There is also another graphic, detailing the probable capabilities of their missile systems.
Goodness knows where this is going. Hopefully North Korea are only sabre rattling. But if they are not, world geopolitics is going to become very complex, very quickly.