Battle of Ossus

Overview
The Battle of Ossus took place on the planet Ossus in the year 90 ABY, the battle was fought by The New Jedi Order and The Dark Covenant when the latter launched a surprise assault on the Ossus Jedi Temple.

Prelude
After a statement from Jedi Knight Zhane Trios was given to the Jedi High Council concerning a Sith resurgence, the assembled Jedi Masters began to discuss the threat until a armada of Mandalorian Dreadnoughts entered atmosphere and descended towards the Jedi Temple with several Sith leaping from their ships towards the main council room where Darth Requiem and Darth Syndos directly attacked members of the council using both rocks and their lightsabers to kill several.

The Battle
With the main council of Jedi Masters being attacked, most within the temple did not know of the attack until members of the Dark Covenant entered the temple and attacked them directly.

Jedi Healer Venu Skilla encountered Darth Specter and the paired duelled outside of the Temple's infirmary only to lose to the Sith and receive a fatal stab to the chest.

Darth Sioul attempted to steal Jedi and Sith relics from the Great Vault only to encounter a recovered Cain Skywalker with whom she duelled for possession of Luke Skywalker's lightsaber.

Sith Acolyte Talion Skywalker entered the battle later than expected but engaged surviving Jedi Knights who attempted to guard the Temple Steps from any surviving Sith.