8. Pakistan, 617,000
The Pakistani armed forces were created in 1947 after gaining independence from the British Empire.
They have fought two wars with their rival India, one in 1947 and the other in 1965.
They also had border skirmishes with Afghanistan during that time.
Probably because India's military has close ties with Russia, Pakistan has turned to Russia's rivals, China and the United States, for its military requirements.
Most of its weapons are imported from these two countries.
It also has an agreement with China to research, develop and enhance the country's military system.