Milan Aćimović was a Human male who served as the commanding general of the Royal Onderon Militia during the aftermath of the Clone Wars, and led it in a resistance against the local Imperial occupation forces. Aćimović later joined the Alliance to Restore the Republic in 1 BBY, after the resistance fell to the Galactic Empire and he was forced to leave the planet with some of his other officers. The survivors of the Onderon Militia formed a unit within the Alliance ground forces called the Onderon Legion, comprised of volunteers from Onderon (many of whom were former members of the royal militia). They took part in various campaigns, mainly insurgencies against the Empire on occupied worlds. In 3 ABY, Aćimović was stationed on Hoth, though managed to evacuate. After the Battle of Endor in