One thing I never understood about Invasion:
The Dominators claim they are so powerful and scary, everyone is afraid to cross them.
The Dominators also claim they are plotters and schemers, but never shed blood themselves. They get the Khunds and and other races to do that.
So what stops the Khunds from taking over the operation, and using the Dominators as their strategists? Scheming by itself doesn't really translate into fear, nor allow one to impose their will, as the Dominators seem able to do to every race in the universe. It takes military might to do that.
Bottom line, what do they have over the other races, that makes them the big man on campus? Why are they followed as the leaders of this Invasion?
Dominators, as self admitted thinkers who are not warriors, somehow spread fear as if they're a military power. The story never makes it clear how they do this. WHY everyone is so scared of them, in a world filled with Colu and Khnuds and all sorts of military based races and brilliant genius's.