Battle of Vulcan

The Battle of Vulcan took place in 2381 in the orbit of Vulcan, between the forces of the United Federation of Planets and the Borg Collective, when two Borg cubes attempted to assimilate Vulcan, Bajor, and eventually, Earth. Although the battle resulted in significant casualties for Starfleet, the fleet was more prepared to fight the Borg, and both cubes were destroyed.