Starfleet

In a parallel universe, Starfleet was a uniformed service of the United Federation of Planets during the 23rd and 24th centuries.

24th century
When Delta IV was attacked by a joint Borg/Cybermen force, it was Starfleet which organised the defence and evacuation of that Federation world. (COMIC: Assimilation²)

Alternate timeline
In an alternate timeline, the Cybermen, after integrating N-Space with the Federation universe, successfully conquered Mutter's Spiral. Several points in this timeline were visited by the Doctor's TARDIS, as the Eleventh Doctor demonstrated to Captain Jean-Luc Picard what would happen had the Cybermen been allowed to conquer the Borg. After conquering the Borg Collective in the late 24th century, the Cybermen began a campaign to convert the galaxy. By 2533, the Cybermen had conquered Earth and vanquished San Francisco's Starfleet Academy, the last holdout of free humanity. (COMIC: Assimilation²)