The Sigma V Campaign

The Sigma V Campaign officially took place on July 14, 2569, on the UEG planet Sigma V, located in the Sigma-India system. It was a violent conflict between the UNSC and Sangheili Coalition, and a rouge Sangheili fleet. This conflict lasted about two years, and had many causalities(70% of which were UEG civilians). The end result was with UNSC-Coalition forces pushing the renegade Sangheili out of the system, and the discovery of a different and powerful sovereign entity.

Sangheili Uproar
In 2565, Sangheili colonies in the shared system of Sigma-India had began to show that they were becoming anti-human. There were many huge sessions of preachers exclaiming to the Sangheili colonists that the humans were a weaker species, and did not deserve honor, nor pity. They suggested that they should be slaughtered due to their primitive urges of war and greed. Soon following these seminars, the Sangheili colonies of Sigma-India cut off all trade and communications with the UEG.

Blackout
In late 2566, after an major rally in the Sangheili capitol planet in Sigmas-India, all contact with the Sangheili colonies were lost. Any and all attempts of communication were not answered or acknowledged. The Sangheili Coalition responds with sending the Fleet of Shining Reverence to investigate.

When the Fleet arrives in early 2567, they inform the Coalition that it is a wide-spread relay problem, and that they will help repair them.

Problems Within
In mid-2568, rumors spread around, claiming that the Fleet of Shining Reverence has started practicing anti-human sentiments, the most controversial incident being on October 13, where the Sangheili Coalition received unconfirmed reports of fleet-wide executions of crew members who apposed anti-human practices. However, the Coalition brushes these off, believing that no such thing could happen.

Rinse and Repeat
On January 10, 2569, all contact with the Fleet of Shining Reverence is cut off. The UNSC responds by sending scout ships to figure out what is happening. These scout ships are never seen again. This is when the UNSC and Sangheili Coalition begin to muster a fleet to investigate further.

The Battle of Sigma V
On July 14, 2569, the Fleet of Shining Reverence jumped into space nearby Sigma V. They immediately engaged and destroyed the small group of ships that defended the planet. They attempted to enter in Sigma V's athmosphere, but were halted by the planet's array of planetary defenses, in which quickly engaged the renegade ships.

Following this discovery, the Fleet sent overwhelming swarms of fighters and dropships to destroy key sites defending the capitol city of Sigma V, Kamarina. This tactic proved successful, and soon the ships covered the skys above Kamarina.