The Krakatoa Consortium in Earth year 2875, comprises the remnant of humanity. We are all that is left, but for the aid of two allies, we would not be. The Vulcans, who's observation and concern, rescued a small number of our ancestors, and the Myrmadon, who provided a place of refuge for them and us, when our home planets were lost.
In conjunction, our three societies have formed a Consortium, to rid the galaxy of the Borg, a society of cyborg enhanced creatures who stop at nothing to achieve perfection.
These creatures have proliferated the galaxy by using temporal incursions to dominate and assimilate Federation members before they have achieved the technology to defend themselves.
It is only now that we have achieved a way to travel in time that will not damage the integrity of the timeline, and we have designated Earth, in the year, 1995, to begin our assault on these invaders.