What do mean by PoD I sorry do know what that word means.I would say at the very least significant changes to the history of Eastern Europe and the middle East by keeping another power in the region. Russia is unlikely to have to same development if the south is in Khazar hands.
It would depend quite a lot on what PoD you use.
What do mean by PoD I sorry do know what that word means.
With the Khazars to act as a buffer the Turks might have been pushed further south and east and invaded Iran and India,which would have allowed for the possibility of the Survival of the Byzantine Empire.
The major change started in when 967 AD. Sviatoslav I of Kiev would had failed destroy Khazar Empire in 967. With fact Khazar Empire well claim defender of Jews and talk must Jews flee Spain during Spanish Inquisition held to Khazar Empire rather flee to Ottoman Empire would lead the Byzantine Empire around little more on the defense. Leading to fight one front war with the Russia Empire for awhile. Of course the Byzantine Empire sooner or latter likely fallen making Khazar Empire have fight both Ottoman Empire and the Russia Empire. In all like Khazar Empire history defensive might done well enough hold Napoleon at bay likely lead Napoleon Empire existed for a while.Point Of Departure. The point in which history begins to change from ours.
Khazaria Empire limit real effect on the Ottoman Empire. They simple different area world not fought few wars with Byzantine Empire. They more limmit range conquest rather then stop conquering. One massive change Khazaria Empire was stop Ottoman Empire conquering Europe. Must European just out fear might paying tribulation to the Khazaria Empire in return for protect from a possible Ottoman invasion.First problem there is to assume that any of these things will be in any way alike to what our history is, the existence of Khazaria is going to heavily impact history and there likely never will be an Ottoman Empire or a Napoleon. The second problem there is also how does it survive? A nation surrounded by enemies is going to have to find some way to not turn out like Poland and just be slowly picked apart by their greedy neighbors.