Following the attack on Vega II and the Militia Mobilization Initiative's launch, an additional initiative by the name of Terra Star Initiative was launched by Terra III local government to attempt to make its borders more secure and to ensure another Vega II situation does not happen at Terra. Under that initiative, Terran government would support, promote and provide funding to volunteer forces in good standing to elevate them into capable response fleets, should the Vanduul come knocking doors of Empire's second heart. With lawful, authorized militia forces, private military companies and local bounty hunters gaining military-grade equipment in 2946 under MMI, Terra Star Initiative became the foundation of various mercenary groups, security firms and private militaries.

 

In 2946, the 36th Expeditionary Battlegroup was created through the TSI programme, made up of volunteers from many walks of life; from ex-UEE military personnel to Vega survivors. Due to the 36th Battlegroup originating from Terra, eventually they became known as the "Terra Star Expeditionary Battlegroup" in addition to the official designation.

 

While starting as a small private military that specialized in scouting, partisan operations and reconnaissance, 36th Expeditionary Battlegroup managed to make a name for themselves through fulfilling contracts against local NovaRiders and NineTails cells at harder to reach locations, away from the main supply lines and reinforcements. 36th's capabilities grew over time with more lucrative contracts, former military members' networks and a Terran senator taking an interest in both the TSI and 36th's operations. By 2951, the Battlegroup fielded several gunships and expanded area of operations even into Nyx to quell Vanduul raids. This expanded area of operations gave rise to a substantial amount of supportive departments and squadrons within the 36th, from engineering to research, as the battlegroup needed to construct, operate and maintain it's own facilities, especially within frontier worlds and beyond UEE borders to keep a robust supply chain and avoid being externally dependant.

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36th's first large scale operation was during the first XenoThreat assault on Stanton, where they worked alongside CDF elements and UEES War Hammer in defense of INS Jericho station. During the incursion, 36th Expeditionary Battlegroup became known for destroying XenoThreat Idris frigates from within through boarding maneuvers,  Subsequently, the battlegroup answered the call in nearly every CDF deployment and was recognized as veteran first responders by the CDF and known as reliable partners by Crusader Industries in a few years, defending Stanton system from numerous NineTails blockades and the Siege of Orison.

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36th's capabilities was truly tested in 2954, as Slicers' incursion brought destruction and chaos to people of Stanton and CDF was once more called to action. While the 36th faced initial successes in countering the Slicers threat in skirmishes around the system's moons, this success would soon turn to tragedy as the battlegroup found itself jumping into yet another small skirmish that had escalated into a major engagement. Another militia group by the name of the Glaciem Liberation Front had engaged a sizeable force of Slicer assault craft orbiting one of Crusader's comm arrays and quickly found itself on the back foot as a Slicers Idris and its supporting craft joined the engagement. Taking heavy casualties in this ambush, the group was barely saved by the 36th's arrival but the situation quickly devolved into chaos as 36th's flaghip was destroyed by the Slicers' Idris. Robbed of its leadership and heavier assets, the 36th suffered heavy losses, with several ships being lost even before fleet command could be passed downwards.

 

The battle was eventually won by remaining elements of the GLF forces regrouping and aiding the 36th. In the aftermath of the battle, remnants of GLF was integrated into Terra Star Expeditionary Battlegroup to bring it back to near full strength.

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Under the fresh command of Admiral Michael "Shooter" Richards and tensions rising in Pyro, the 36th Expeditionary Battlegroup found its views about Pyro system shifted from a transit hub towards a new frontier. As elements of the battlegroup that had remained in Terra were quickly transferred to the Stanton system and capital warships became available, they became a prominent security and logistical contributor to the efforts of the Citizens for Prosperity.