It was a dark time for the Alliance. It appears they have designated the Iceni incorrectly. It was a Freighter, not a Frigate, designed to carry a shipment of Bosch Beer to the Shivans. Bosch, from research into GTI, knew of the Shivan's love for Bosch beer, and decided that he would bring them a massive shipment stowed onboard all of the NTF ships. Initially, the Shivans were just trying to steal some after finding some on board the NTC Trinity. When they heard the rest of the shipment (the NTF Fleet) got destroyed after Bosch contacted them, the Shivans essentially got real pissed and decided that blowing up a star and watching the resulting light show (reknowned for being very pretty to shivans) would be a good way of releasing the stress. So they blew up Capella. Some Shivans were mesmerized by the prettyness of the explosion and failed to jump out in their Sath before they got smoked. Others were more alert and managed to jump out.
As for Bosch, they assimilated him to learn the secrets of how to make more of this beer. Now that the Shivans are running low on ingredients, they are preparing to invade a third time...
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EDIT: Damn, that was retarded. It felt right when I was typing it