The Borg Invasion of 2381 was the historic attempt by the Borg Collective to completely exterminate the United Federation of Planets, Klingon Empire, and other allied worlds in the Alpha and Beta Quadrants and to subjugate the remaining worlds in local space. The invasion left dozens of worlds in the area of the Azure Nebula in utter ruin, decimating much of known space. As a result of the invasion, upwards of 40% of the Federation Starfleet was destroyed, and over 63 billion citizens of the United Federation of Planets, Klingon Empire, Romulan Star Empire, Imperial Romulan State, and non-aligned worlds were butchered.

Places attackedEdit

• Barolia: (Independet world, homeworld of the Barolian civilization and major trading hub near the Triborder- Destroyed).
• Acamar III: (Independent world, homeworld of the Acamarian civilization- Destroyed).
• Korvat: (United Federation of Planets colony- Destroyed).
• Khitomer: (Klingon Empire colony- Destroyed).
• Ardana: (United Federation of Planets member world and homeworld of the Ardanan civilization- devastated but saved from destruction by the heroic sacrifice of the crew of warbird IRW Verithrax).
• Aldebaran: (United Federation of Planets colony- Believed Destroyed, despite efforts by the Talarian Third Fleet to hold the line).
• Vulcan: (United Federation of Planets founding member and homeworld of the Vulcan civilization- Devastated but saved from destruction thanks to the actions of Erika Hernandez).
• Beta Rigel: (United Federation of Planets member system, featuring homeworlds and colonies of several species of Rigellian including the Chelon- Devastated but saved from destruction thanks to the actions of Erika Hernandez).
• Andor: (United Federation of Planets founding member and homeworld of the Andorian civilization- Devastated but saved from destruction thanks to the actions of Erika Hernandez).
• Tellar: (United Federation of Planets founding member and homeworld of the Tellarite civilization- Devastated but saved from destruction thanks to the actions of Erika Hernandez).
• Qo'noS: (Capital of the Klingon Empire and homeworld of the Klingon civilization- Devastated but saved from destruction thanks to the actions of Erika Hernandez).
• Risa: (United Federation of Planets member world and homeworld of the Risan civilization- Destroyed).
• Deneva: (United Federation of Planets member world and principally Human colony- Destroyed).
• Ramatis: (United Federation of Planets member world and homeworld of the Ramatisian civilization- Destroyed).
• Yridia: (Independet world, homeworld of the Yridian civilization- Destroyed).
• Nausicaa (Independet world, homeworld of the Nausicaan civilization- Destroyed).
• Rura Penthe: (Klingon Empire penal colony world- Destroyed).
• Gorath: (Klingon Empire world - Possibly destroyed, status unclear).
• Pandril: (United Federation of Planets member world and homeworld of the Pandrilite civilization- Destroyed).
• Sherman's Planet: (United Federation of Planets colony world - Destroyed).
• Lorillia: (United Federation of Planets member world and homeworld of the Lorillian civilization- Destroyed).
• Coridan: (United Federation of Planets member world and homeworld of the Coridanian civilization- Destroyed).
• Nequencia Alpha: (Romulan Star Empire world - Destroyed).
• Adelphous IV: (Unknown- Destroyed).
• Devnar IV: (Unknown, possibly Romulan- Destroyed).
• Rhaandarel: (United Federation of Planets member world and homeworld of the Rhaandarite civilization- Destroyed).
• Xarantine: (Independent world allied with the (United Federation of Planets and home of the Xarantine civilization- Destroyed).
• Jouret: (United Federation of Planets colony world - Destroyed).
• Castor: (Unknown independent- Destroyed).
• Elas: (United Federation of Planets member world and homeworld of the Elasian civilization- Devastated).
• Troyius: (United Federation of Planets member world and homeworld of the Troyian civilization- Devastated but saved from destruction by the U.S.S da Vinci).
• Devoras: (Romulan Star Empire or Imperial Romulan State- Status unknown).
• Beta Thoridor: (Klingon Empire subject world - Destroyed).
• Beta Lankal: (Klingon Empire subject world - Destroyed).
• Hyralan: (Independent world- Destroyed).
• Celes II: (Independent World- Destroyed).
• Regulus III and V: (United Federation of Planets major colony worlds - Destroyed).
• Morska: (Klingon Empire subject world - Destroyed).
• Starbase 234
• Starbase 343
• Starbase 157