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ST Expanded

Up to date as of February 07, 2010

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The Mirror War
Vulcan, location of the Battle of Vulcan, first battle of the Mirror War.
Start date 2602
End date unknown
Place(s) Primary universe, mirror universe
Result Unknown
United Federation of Planets Second Terran Empire
Admirals Frank Riker, Klug The Emperor
Unknown Unknown
material losses
Unknown Unknown
Unknown Unknown

The Mirror War is the term used to describe the conflict between the primary and mirror universes in the early 27th century. The first attack from the mirror universe occurred on September 10, 2602. (Star Trek: Mirror Wars)


The war started when the ISS Enterprise (NCC-1701-O) attacked the USS Enterprise (NCC-1701-O). The Enterprise-O sent a message to Starfleet warning of the attack. Starfleet sent a fleet to meet the enemy fleet. Unknown to them, the fleet they were attacking was only a diversion while a cloaked fleet went to attack Vulcan (see main article, Battle of Vulcan for more info). After that, the war went badly for Starfleet, but no details were given.

Later, Starfleet crossed over into the mirror universe and attacked Earth. They were defeated, however, because somehow the Second Terran Empire knew they were coming.

Major battles

Major fleets

This article uses material from the "Mirror War" article on the ST Expanded wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


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