I [i]suppose[/i] I should start working on a post to introduce the Draconians.

By the way, when the Draconians race ahead of everyone in the game of expansion, and become bigger and more powerful, they're going to splinter and go back to civil wars with each other. Getting pulled into the conflict to support one side or the other would be very beneficial, when it's over- you get bloodthirsty soldiers on your side in any war, making good political allies in the process ("Accept our treaty that is totally not biased for ourselves or we'll point the Draconians your way!") and opening up the ability to gather salvage and the like. 

Of course, getting into a war with the Draconians beforehand offers a variety of tactics- hitting worlds that produce agricultural goods, whether by nuking the surface or just taking out shipping facilities, will force Draconians to fight over resources (if its low enough), or you can sow dissent between the different factions and military fleets, which will also get them angry at each other. Very powerful enemies in combat, but on the wider scale, much easier to force their attention at each other.