Hi everyone. I need some help forming a strategy to conquer Khorvaire. Our group is playing a DnD 3.5 monster game consisting of five rakshasas and one phasm. Effectively, we're around level 18.

So far we've enlisted an army from Q'Barra - lizard-folk 30,000 strong. To complete a quest for an artifact, we skirted the southern continent via boat and sacked Sharn.

Everyone would like to put the army to good use, but this is a sandbox game and there is no clear path to victory. Some players suggest enslaving a race, dwarves or halflings maybe? I have a tendency toward wanting to infiltrate the nobility of two nations, pitting them against each other and then using the army to mop up the resulting mess. Still others wish to tunnel under ground to a major city and surprise attack (possibly utilizing the underdark if it exists).

How would you conquer Khorvaire?