On a more honest note, I think perhaps they _did_ have a plan: infiltrate the military mainframe, disable the fleet, and nuke the colonies. Worked just fine. They just didn't have a plan for _after_ that...

'heehee...know what will really screw with them? Attack every half hour, but not quite close enough to kill them before they jump.'... 'oh, dude, even better, make it every 33 minutes instead!' 'dude, totally...lets do it!'