if Bolghar tribe is successful in the raid, then Bolghar tribe could quickly take a hold of resources and people and then bow out of the conflict earlier out of time, recuperate and then begin extending their influence.
But that night, there is scout and spies from the Khagai tribe that notice the movement of these forces.
If one had to say who is paying the most attention toward the Bolghar tribe, that would be the Khagai tribe.
From the very beginning, they were reminded by the Advisor of Kan Aeryon, Mayeux that they need to pay attention to the Bolghar tribe
Not to mention there is a plan of cooperation between the two tribes to take over the West.
Khagai tribe chief has also secretly swore fealty to the young Kan believing that the young Kan could unite the tribes of the Southern Great Steppe.
So, they have been paying attention and send spies, scouts and set up surveillance post.