The Battle of Wolf 359 was the Federation's disastrous first fleet action against the Borg. It was part of Borg invasion of 2367.
In early 2367, (stardate 44002.3), a fleet of forty starships, under the command of Admiral J.P. Hanson, massed at Wolf 359, 7.8 light-years from Earth, in an attempt to halt a Borg cube en route to Earth. Using the knowledge of Captain Jean-Luc Picard, who had earlier been assimilated and given the designation "Locutus", the Borg destroyed 39 ships. The one-sided battle cost the Federation over 11,000 lives. (TNG episodes: "The Best of Both Worlds, Part II", "The Drumhead"; DS9 episode: "Emissary", plus story Final Entry and comic Second Contact)
See template below for ships known to have been lost in the Battle of Wolf 359.
Template:Ships at Wolf 359
External Link
Battle of Wolf 359 article at Memory Alpha, the wiki for canon Star Trek.
The Wolf 359 Research Project, which identifies and reconstructs ships lost at the Battle of Wolf 359 from production photos, interviews, and analysis of screen captures from "The Best of Both Worlds" and "Emissary", at Ex Astris Scientia.