Prologue
Sixty years of peace passed after the annihilation of the Empire and Emperor Palpatine. Over a course of ten years, the Ewoks and Wookiees become allies, but there were only minor wars throughout time, especially for the Wookiees, since the Trandoshan slave period ended. The rebel armies were stationed mainly on Tattoine and Yavin 4.
Soon, forty years after the Ewok-Wookiee-Alliance (Which was still able to be maintained) slaving of Ewoks began to appear on Endor, where they were being sold through a slave ring of different species, including Trandoshans, kicking off the Second Transoshan Slaving Period.
Different Groups of humans were buying or capturing the slaves, to take them to the baron-ice planet of Rhen-Var. (While Rhen-Var still was slightly populated by humans, the population was not vast) Without the Rebel Alliances knowing, the human groups joined together with different species, wiping out the civilian population of Rhen-Var.
While the Trandoshans were allied with the Alliance of slavers, they could not enter Rhen-Var due to their reptilian functions and adaptations. This formed a dangerous civil war on Trandosha. There were two separate sides; one, wanting to keep out of Slaving; another, wanting to stay with the alliance instead of leaving slaving.
And then, controversy spread throughout the Galaxy, as a violent raid on Endor was carried out by the recent Wookiee rebellion, which was part of the Slave-Ring-Alliance. (Later to be called the "Second Rebel Cause") A civil war also started on Kashyyk after the attack, with the same reason for the Trandoshan Civil war.
In Trandosha, an alliance was formed between the Anti-Slaver Wookiees and the Anti-Slaver Trandoshans. As Wookiees were sent onto Trandosha to help the Anti-Slavers there, the same was for Trandoshans being sent to Kashyyk. Being sent with the Trandoshans was Sossk, Bossk, the legendary elder bounty hunter's son.
In Rhen-Var, the Rebel Alliance had started an assault on a citadel, and sought an alliance with Endor. (As they already did with Kashyyk) The assault was carried out successfully and the Citadel was Rebel territory. There they found out what the Slavers wanted to do there. Similar to the N-K projects, where the Remains of the infamous Separatist General Grievous and IG-100 models were recovered to remake a droid like Grievous himself, the Second Rebel Cause had recovered aged Clone Era technology used by separatists from the Invisible market in an attempt to recreate the droids of the trade federation for an army, in order to carry out the slave wars in a good direction for them.
A Mandalorian Bounty Hunter soon assassinated the Legendary Elder Bossk, who had supplied Sossk and a young bounty hunter who was the son of a long time companion, Boba Fett. But it was soon discovered that the Second Rebel Cause wanted more than just Slaves…