cossaks
The Cossacks? I am not sure
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?
Fierce warriors
carib
I am not sure but it probably came from how fierce warriors are. Most sports that involve the team name warriors are contact.
Fierce warriors
They were fearless, fierce, and merciless warriors.