From Halopedia, the Halo wiki
Around 2531, Victoria was briefly taken over by the United Rebel Front. The URF forces on the planet were led by General Howard Graves. The insurgents were based in Camp New Hope, a camp controlled by the Insurrectionists.
In 2531, the United Rebel Front contacted the UNSC and offered to trade their stolen nuclear weapons in exchange for medicines for their people suffering from Boren's Syndrome. SPARTAN-II Blue Team infiltrated Camp New Hope, however they were ambushed and captured by the rebels, whom had anticipated the Spartans' raid on the planet. However, the rebels were unaware of Kurt-051's presence and he was able to free the other members of Blue Team. Graves was killed in during the resulting skirmish and the Spartans retreated from the camp with the recovered warheads. At some point, the UNSC retook the world from URF-control.
The 2009 and 2011 editions of the Halo Encyclopedia put the 111 Tauri system as the Taurus system. Listing Victoria as a location on a planet named 111 Tauri. This was in direct conflict with Halo: Ghosts of Onyx. The 2022 edition of the Halo Encyclopedia rectified this issue by supporting Halo: Ghosts of Onyx depiction.
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