In the north there were yet Subartu people.
And in later times Kassites.
I think, that this question could be answer only if someone examine cows DNA from that time...he claims the Proto-Indo-Europeans (R1a and R1b-P297 or M269) on the Pontic steppe got their cattle from the Cucuteni-Triplye people, east of the Carpaths (present-day Moldavia), and cattle never crossed the Caucasus.
What is your opinion?
Did Proto-Indo-European R1b cross the Caucasus with or without cattle?![]()