Annamar was a planetoid with a breathable atmosphere located within a vast asteroid field.
The planetoid was home to a droid factory during the Old Republic which specialized in experimental battle droids. After it was abandoned, the Rebel Alliance used the factory as a base, conducting raids on the Corellian Trade Spine. After stealing a cargo ship carrying a vital piece of the Death Star II's weapons systems, the Rebel Wolf Squadron unit brought it to Annamar. Shortly after, it was the site of the Battle of Annamar, which saw Darth Vader decimate the entire base, kill all its personnel and retrieve the piece.
The planetoid was home to a droid factory during the Old Republic which specialized in experimental battle droids. After it was abandoned, the Rebel Alliance used the factory as a base, conducting raids on the Corellian Trade Spine. After stealing a cargo ship carrying a vital piece of the Death Star II's weapons systems, the Rebel Wolf Squadron unit brought it to Annamar. Shortly after, it was the site of the Battle of Annamar, which saw Darth Vader decimate the entire base, kill all its personnel and retrieve the piece.