Originally Posted by
Slaists
If you are short on cash at the start of the campaign, looting, letting the region rebel, then taking back from the rebels and occupying (or looting again) sometimes pays nicely. Just be careful not to raise the slave population too high. Also, when you do this, do it in regions that are part of provinces where you have no other holdings (since happiness is set province-wide).
Coincidentally, looting, letting the region rebel, then subjugating seems to be the best course for creating faithful client states. Subjugating directly results in a client state that still remembers all the hostilities that you have inflicted upon the faction over the course of the war. However, if you loot, let the rebels take the region and then, on the very same turn subjugate their settlement, the resulting client state has only a very short memory of the very last war (that did not even last a turn). Thus, the resulting client state turns "green" (on the diplomatic screen) in no time.
Subjugating in this fashion has the added benefit of the client state not inheriting all the wars of the original faction. The rebels will be a technically "fresh faction". BTW, the client states inhering old wars is not a problem for satrapies: all their wars are rendered null and void upon subjugation. Still, by looting -> rebelling -> subjugating can result in a more reliable satrap than straight subjugation.