As Jaddari you can very quick at the start of their campaign both subjugate the Verkal Gulan and then convert them to The Jadd. The last mission on this mission tree then sends out an "expedition" down the old dwarf holds/roads to which you drop your own resources to depending on how far you want to supply them, and then choose the Goal for the expedition.

What I would want to know is how the differing goals will effect my success chances and/or results of the expedition? I've gone all in when it came to supplying the Expedition before this.