Imperial Rear Service

The Imperial Rear Service was an Imperial Armed Forces support branch, tasked with backing Imperial Army and Stormtrooper Corps units during battles, as well as guarding what they took captured. The Rear Service also acted as the Galactic Empire's auxiliary military force, or reserve.

History
The Rear Service was established in a coordinated effort by Army Command, Naval Command, Battle Station Command, and Stormtrooper Command in 18 BBY. In charge of carrying out offensives for the Empire, the four branches realized they may need more security guards for cities, installations, vessels, and stations. Drafting large numbers of human males from the Outer Rim Territories, the Rear Service numbered in the billions. The Emperor, liking the project, devoted trillions of Imperial Credits to arming and training it's troops.

In 2 ABY, the Imperial Mining Corps set up facilities on the mountainous planet of Angeria. The Rear Service deployed several battalions of troops to the planet to guard their mines and processing plants. The Alliance to Restore the Republic did not know of the operation until two Rebel Alliance Special Forces commandos stumbled upon Angeria after escaping in a freighter from an Imperial fleet. They landed outside of a supply base to raid it for starship parts. The small facility was guarded by a squadron of Rear Service personnel, led by Major Zhukov. The two commandos quietly killed the entire squad on their mission, which became known as the Skirmish on Angeria. Afterwords, the Rear Service decided to give better training to recruits.

After the Battle of Endor, the Rear Service fell apart. Some units stayed loyal to the Empire, others joined warlord factions, and many simply deserted. A few units were known to have become mercenaries or were hired as planetary security forces. The Imperial Remnant planned to revive the Rear Service.