Well the players looked at the stats they could find for the Sectors they were playing in, and it does not really look good. There are a few train tracks of Mains heading right into the Drinax area, so how best to defend the area. The Ihatei adventure cemented in the idea that the Aslan will never settle for peace and stable borders. The urge to expand and conquer is genetic.
So how do you blunt the Aslan threat? In the Ihatei module my players nuked the camp and took out all the Aslan mid meeting, so no attack this year. At the same time they framed the one Aslan hero with treasonous acts, and gave away the location of the base on the war world. So they upset the balance of power and the course of the war. All this does though is buy a little more time and allow the Aslan to have more litters of males. So they started to think outside the box.
You could look at the entire Drinax adventure series as a lesson in futility. Unless you can seriously alter the balance of power in the area you will eventually get wiped out, pushed out or overrun. Even the first edition module ended with the sad summary of the short lived Drinaxian empire.
So how do you alter the equations in a big way? take out 70 percent of the threat, and hope you can blame it on another Aslan clan. Let the Hierate eat itself in a civil war.