The NX-17 Andoria was an NX-class vessel built shortly after the beginning of the Federation, in the Nesrun Shipyards, which were previously the main Fleet yards in the Andorian Empire. The first U.S.S. Andoria served in the new Starfleet with distinction for nearly six years, whereupon the vessel was lost, presumed destroyed while investigating a temporal anomaly near the Romulan border. It is unknown whether the destruction was caused by the Romulans or the effects of the temporal anomaly in the middle of 2157, shortly before hostilities began in the Earth-Romulan War. Indeed many historians believe that the Andoria's loss was one of the major triggers which finally ignited hostilies between the Coalition of Planets, lead by Earth and including such notable soon-to-be Federation members such as the Vulcans, Andorians, Tellarites and Denobulans against the Romulan Star Empire. This was would result in the signing of the Romulan Neutral Zone Treaty and turning the "hot" war back into a cold war with the Romulan Star Empire and eventually, this treaty would lead to the foundation of Obsidian Fleet and her role within Starfleet.