Occupation of Thessia

After the defeat of the asari at the Battle of Thessia, the Occupation of Thessia began by the forces of the Krogan Empire. It ended with the ceasefire during the early months of the Zinroth Wars.

Administration
After the defeat of the Citadel Alliance, and the exile of the asari governing body, Thessia was declared to be a province of the Krogan Empire. The planetary governor of Thessia was Lazatag Gras, a krogan warlord, and the leader of Clan Lazatag. He was the commander of the krogan forces during the invasion by the Grand Pact. A sizable krogan garrison was installed on the planet. The head of state of Thessia was the Krogan Emperor, in this case, Urdnot Wrex.

In addition to the krogan forces present on the planet, the turians also placed their own force, albeit a smaller one. The Turian Hierarchy, however, had little say in the happenings on Thessia.

The asari had absolutely no say in the affairs of the government, and were forbidden from so much as being police women. The krogan considered the ideas of puppet governments insulting, and kept all power on the planet to themselves.

Asari under Krogan Imperial occupation
The treatment of the asari by the krogan soldiers was surprisingly even handed. Emperor Wrex, out of respect for the asari, forbid outright oppression of the asari. Unfortunately, many krogan, believed the asari to be beneath themvvv, and that it was their right as the conquerors to do with the asari as they pleased. They also resented the asari for what they believed to be arrogance, and overconfidence.

As a result of this, the krogan pillaged and ransacked Thessia as they saw fit. Warlord Gras, subscribing to this view, looked the other way, not reporting many actions to the Emperor.

Resistance
An anti-krogan cell, called the "Thessia Liberation Alliance" was founded by remants of the asari armed forces, for the purpose of resisting the occupation. Interestingly, the krogan did not label it a terrorist organization. Instead, Warlord Gras was impressed by asari resilience, and instead of responding violently in response to insurrection, the krogan respected them as warriors, and opted to fight them at their own game. Unfortunately for the asari, these tactics meant that success was very limited.

Effect on the War
With the fall of Thessia, the central base of the Citadel Alliance was relocated to Sur'Kesh, the salarian home planet. The role of Supreme Commander of the Allied Forces fell to the salarian general, Sirton Marn. The asari pressed for a force to retake Thessia at all cost, though the salarians wanted to keep their forces close, so as to defend their own world, and the vorcha were diverting their resources to weaponize Omega.