The Battle of Roche took place in 41 ABY, as part of the Second Galactic Civil War.
The Imperial Remnant, was an associate state with a high level of connections to the Galactic Alliance, and had allied with Darth Caedus. The Galactic Alliance attempted to capture the Roche asteroids to use Verpine technology for their war effort. The Mandalorians, allied with the Verpine, defended them with the help of Jacen's twin sister, Jaina Solo.
The Remnant employed an aerosol nanovirus that was made to kill only the soldier caste, but not affecting other creatures or Verpine so they could continue to work in the munitions factories.
The Imperials used the Super Star Destroyer Dominion as their flagship during the battle. It was reduced to a flaming hulk by a concentrated starfighter assault from Nickel One.
- The Complete Star Wars Encyclopedia
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