The meetings between the Koleska planetary leaders, military leaders and politicians ran all through the night and into the next day. There were huge logistical issues with what they were attempting to do, and now that everyone had a chance to hear from Commander Yuri, they were well aware of the issues with the Arisen Army's tracking virus, which had presumably infected the majority of their vessels by now.
That was the biggest issue that they had. If the Arisen detected the move, they could follow the civilians of the planet to their new homes. They didn't target military facilities on purpose most of the time. They only eliminated them to get at the soft targets behind them and wipe out as many of their targets as possible.