World's 5 Largest Armies

Numbers are via Nationmaster.com:

1. China-2, 300,000
2. India-980,000
3. North Korea-923,000
4. South Korea-548,000
5. Turkey-525,000

America is #6 with 507,082 though this is expected to grow in the next few years. The Russian Army, is more or less the US total, according to the source.

Update-Nationmaster, and myself overlooked the Chinese Army. Thanks to Galrahn for pointing this out!