9. Iran, 523,000The Armed Forces of the Islamic Republic of Iran consists of the IRIA, the IRGC, and the Police Force.
They total about 523,000 active personnel; numbers which exclude the Polce Force and the Army of the Guardians of the Islamic Revolution.
All the branches of armed forces fall under the command of General Headquarters of Armed Forces.
It was once feared as the Middle East's most powerful military by General John Abizaid, chief of US Central Command and is still causing stir in the 21st century.