First Battle of Eratis

The Battle of Eratis (also known as the Battle of Deep Space 17) was fought near Deep Space 17 in the Eratis system in 2383. The Gorn tried to annex the Ithassa Region, and attacked DS17. They were held at bay by an outnumbered Federation fleet under the Ursa Major until Federation and Gorn diplomats agreed to a cease-fire.

Ithassa Region (Map, Stellar Cartography)
Major Neighboring Powers
Tzenkethi Gorn Hegemony Tholians
Governments & Alliances
Confederacy of Core Worlds Free Trade Union One Kingdom The Allied Commonwealth of Worlds
Known Races
Constellationites Gambian Grendellai Ixvapyan Locet Mongminzu Vaadwaur, Devinon V only.
Starfleet Presence
Deep Space 17 Unity One USS Calippus USS Endeavour-A USS Wellington USS Achilles (formerly) USS Independence-A (formerly)
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Ships involved

• USS Ursa Major - Sovereign Class
• USS Hammond - Axis Class
• USS Independence - New Orleans Class (destroyed ^[1])
• USS First Response - Saber class (destroyed ^[2])
• USS Triumphant - Defiant Class (damaged)
• USS Tucson - Galaxy Class (part destroyed ^Saucer)
• USS Forrester
• FTS K'tarn
• 2 other FTU vessels