The Janissaries were the elite infantry of the Ottoman Empire who converted to Islam and became fierce warriors. Originally formed from Christian boys taken through the devshirme system, they were raised as Muslims and trained for military service. The Janissaries played a crucial role in the expansion and success of the Ottoman army, known for their discipline and advanced military tactics. Their loyalty to the Sultan and the empire made them a formidable force in the Ottoman military hierarchy.
The Cossacks? I am not sure
cossaks
The Sumerians
The Vikings.
Because they were fierce and hardy warriors.
The Vikings.
which was true of the ayrans when they migrated to the subcontinent?
carib
Fierce warriors
I am not sure but it probably came from how fierce warriors are. Most sports that involve the team name warriors are contact.
They were fearless, fierce, and merciless warriors.
Fierce warriors