North Korea
It should come as no surprise that the super-secretive country of North Korea is serious about its military. That being said, not much is known about the status of their power. It is estimated that the budget for military spending comes close to $1.6 billion. Who knows what's going on in there...
Iran
In terms of active troops, the Iranian Armed Forces are the largest in the Middle East. About 610,000 active-duty personnel plus 350,000 reserves are ready to serve their country at any moment. They also have several thousand trained personnel that can be mobilized when needed, totaling their power to about 960,000 personnel overall. Talk about a numbers game...