Battle of Wolf 359

The  took place in early 2367 in the Wolf 359 System, roughly eight light years from Earth, between the forces of the United Federation of Planets and the Borg Collective. It is recorded as one of the most destructive battles in Federation history prior to the Dominion War.

History
In late 2366, a Borg Cube entered Federation space and destroyed the on Jouret IV. The U.S.S. Enterprise-D investigated the attack and was intercepted by the Cube, whose crew demanded that Captain Jean-Luc Picard surrender himself to them. Despite an attempt to hide from the Cube in the Paulson Nebula, the Borg boarded the Enterprise and transported Picard to their vessel, which promptly set a course to the Sol System. Starfleet Admiral ordered a fleet of forty Starfleet vessels to assemble in the Wolf 359 System to intercept the Cube before it reached its target. Meanwhile the Borg assimilated Picard, turning him into a drone designated "."

By the time the Cube reached Wolf 359 in early 2367, the Borg had assimilated all of Picard's knowledge, giving them a great advantage against the Starfleet armada. All but one Starfleet ships were ultimately destroyed, with a death toll of over 11,000. Among the vessels destroyed were the USS Ahwahnee,, , and the USS Saratoga.

The Cube itself was finally destroyed by the Enterprise after it caught up to the Borg in Earth orbit and rescued Picard.