Rebellion on Umbara

In 19 BBY, a rebellion against the Galactic Empire occurred on the Expansion Region planet Umbara. During the early months of the Imperial Era, the Imperial Military was deployed to put down the resistance as part of a wider anti-insurgent campaign, with Lieutenant Commander Orson Callan Krennic framing it as a pacification operation.
==Prelude==
During the Clone Wars, a galactic conflict fought between the Confederacy of Independent Systems and the Galactic Republic, the Expansion Region planet of Umbara left the Republic after the assassination of its senator, Mee Deechi,Ultimate Star Wars, New Edition and became a major Confederate stronghold.Thrawn Thus, the 501st Legion and 7th Sky Corps of the Grand Army of the Republic were deployed to invade and take back Umbara in 20 BBY.Star Wars: Galactic Atlas places both the Battle of Mon Cala, which is depicted in the Star Wars: The Clone Wars episodes "Water War," "Gungan Attack," and "Prisoners," and the skirmish in Theed, depicted in "Crisis on Naboo," in 20 BBY. As the Battle of Umbara was depicted in the episodes "Darkness on Umbara," "The General," "Plan of Dissent," and "Carnage of Krell," the events of which are set between those of "Prisoners" and "Crisis on Naboo" according to , the battle must also take place in 20 BBY. Despite heavy resistance, the Republic overwhelmed the Umbaran Militia's impressive defense. The battle was a devastating defeat for the Umbaran government, with even its capital falling to the Republic Army.
==The rebellion==
In 19 BBY,Star Wars: Galactic Atlas concurrent to the end of the Clone Wars, the Republic was transitioned into the Galactic Empire by Supreme Chancellor Sheev Palpatine. That year, a resistance movement emerged on Umbara, seeking to continue the fight against the Empire despite the Confederacy's defeat.
In the months following the Empire's proclamation, the newly-formed Imperial Military was deployed to combat various pockets of resistance left over from the Clone Wars. One of the ensuing battlefronts was Umbara, with the rebel movement putting up a heavy resistance. When speaking to researchers Lyra Erso and Galen Walton Erso, Lieutenant Commander Orson Callan Krennic claimed the Empire had simply launched a series of pacification exercises to quell the rebellions on Umbara and elsewhere, stating the Imperial response would bring about peace.
==Aftermath==
Eventually, Umbara became part of the Empire.Leia, Princess of Alderaan Imperial Ensign Eli N. Vanto believed it would be unlikely for the Umbarans to risk another devastating defeat, as had occurred during the Clone Wars, by resisting. When the Umbara system nevertheless once again became the site of fighting against the Empire, the battle had been instigated by human insurgent leader Nevil Cygni instead of the Umbarans; the rebel wanted to ensure the Empire would take over Umbara's mining industry, knowing it would be easier to bribe Imperial inspectors than Umbaran ones. Bringing an end to Umbara's remaining autonomy, that battle, which saw the arrival of the Imperial Navy in force, further resulted in the Umbarans fully surrendering their world to the Empire,Star Wars Encyclopedia: The Comprehensive Guide to the Star Wars Galaxy to whom Umbara also owed a massive debt its people could only pay off with such a surrender.
==Behind the scenes==
The rebellion on Umbara was mentioned in the 2016 novel Catalyst: A Rogue One Novel by James Luceno.
==Appearances==
*Catalyst: A Rogue One Novel 
==Notes and references==
Category:Battles of the early Imperial campaigns
Category:Battles of Umbara
Category:Rebellions and uprisings