Andromeda Alliance

History
The Andromeda Alliance was originally a group of Terran colonies that during the Second Terran War decided to succeed from the Imperium. A crack special forces Fleet was dispatched to bring them back in line, as the colonies were in a key strategic location. The Officer-in-Command of the fleet decided the colonies were irrecoverable and ordered a planetary cleansing. His first officer couldn't accept this kind of total destruction of their own species and assumed command on the eve of the ordered cleansing, stating the Officer in Command had taken leave of his senses.

He would then go on to lead the colonies in their independence after having been unanimously declared President of the Alliance. Despite the alliances' martial beginnings, the President steered the alliance clear of the xenophobia that typified Terrans of the age and lead it into an era of peace unknown before.