Shawken insurrections

The Shawken insurrections were an insurgency on the planet Shawken in the Core Worlds. Remnants of the Shawkenese Republic, which governed Shawken as part of the Galactic Senate for tens of thousands of years, attempted to secede from the Galactic Empire, though ultimately failed after two decades of open warfare on Shawken; the Shawkenese Republic was officially disbanded in 2 ABY after the signing of the Shawken Treaty, which brought an end to open rebellion on the planet.

Prelude
Following the formation of the Galactic Empire, several sovereign states that were once part of the Republic were further limited in their automy by having their militaries - which were already largely regulated by various Senate conventions and laws established in the Ruusan Reformation - disbanded and reformed as elements of the Imperial Army and Navy; one of these sovereign states was the Shawkenese Republic, which controlled the planet Shawken and had assets on both Velusia and Challon. The Shawkenese Republic declared secession from the Galactic Empire, and declared war on the Imperial government. Most of the Shawkenese insurgents were former members of the Shawken Security Force, which like thousands of other planetary security forces was dismantled and merged with the Imperial Army and/or the Imperial Navy. The majority of the insurgency's operations took place near population centers such as Shawkipolia, the planet's largest city. As years progressed and the Shawken insurgency faced larger defeats over time, resistance on the planet died down to guerrilla warfare, and eventually completely ceased with the signing of the Shawken Treaty in 2 ABY, which brought an end to the Shawkenese Republic and the formation of the Imperial Occupational Territory of Shawken.

Aftermath
More than a quarter of Shawken's population was killed, imprisoned, or displaced by the insurrections, and after the Imperials defeated the insuregency there remained unstable tension between the Shawkenese and their Imperial occupiers. Shortly after the Battle of Endor, the Imperial Occupational Territory of Shawken was once again rebranded as the State of Imperial Shawken, which operated as an Imperial splinter cell that was part of the Imperial League. Tension between the locals and the Imperials culminated in another revolt in 6 ABY, which drew the attention of the New Republic. After some debating in the New Republic Senate, elements of the New Republic Army and Navy were deployed to the Shawken system to defeat the Imperials and restore local rule. A lengthy campaign ensued as New Republic forces, supplemented by Shawkenese resistance fighters, engaged regiments of the former Imperial Army, who themselves were supplemented by Shawkenese recruits who supported Imperial rule. When the Imperial governor of Shawken - a politician from Anaxes who previously fought as an Imperial Navy captain in the insurrections - was detained during a New Republic assault on the capital city, the State of Imperial Shawken was dismantled and the Shawkenese Republic was restored as part of the New Republic Senate.