Silver Steak said:
Well, to be honest, I wouldn't mind some uprisings against the Lengels.

Some Davarian hero, or a fierce Nkondi general declaring the former country of her people autonomous again?
Let me field those:
The Nkondi general would have no reason to revolt.
1: The Nkondi have been all but absorbed into Lengel culture, and by following a religion that decrees that the Lengelzai is the representation of their god, to go against the Lengelzai is to go against God.
2: They are enjoying unparrelleled success by being Lengel, conquering nations and being in positions of power that had never happened when they were merely Nkondi.
3: The current Lengelzai in power is a Woman. That alone would keep many Nkondians in line.
4: The Lengelzai next in line is the son of Khaidu the Iron-Willed, the most respected Lengelzai of the line due to his conquest of his illness and a man of Lengel-Aneyan-Nkondi descent.
So, why would the Nkondi revolt?
Then in the case of Davar, while they have a reason to revolt, they won't.
1: Davar is frightened of the Lengel, and the Lengels are currently waging war against the remanents of the Crystal Ridge Alliance, which is a big plus in their eyes.
2: Davar has been offered the chance to get revenge agaisnt their age-old enemies.
3: Davar is offered the chance to regain some of their autonomy in return for getting revenge against the CRA.
So, why would Davar revolt against the Lengel if the Lengels are offering them two things that are precious to them, without needing to fight the overwhelming might of the Lengels, the only nation able to break through the Keran mountains?