Star Wars: Ashes of the Old Republic
The Clone Wars is the name given to the series of conflicts that wracked the Old Republic beginning around 20 B.E. (Before Empire) and eventually led to its fall.
While some advances had been made in medical cloning of spare parts, cloning of sentient species was sufficiently expensive and unreliable that it was only attempted by desperate people with vast sums of money nearing the end of their lives. That changed with the discovery of the Kaminoans, a race whose survival on a hostile homeworld had necessitated the perfection of genetic manipulation and cloning techniques.
The Kaminoans couldn’t keep up with the demands of the trade federations and mercantile houses that were busy exploiting the Fringeworlds. With traditional technologies expensive to import and maintain, clones became both a tool for taming new planets and a built-in revenue stream for the corporations. Within a generation, sizable clone populations existed on nearly every planet in the outer systems.
On the inner systems, though, things were different. With the advances in droid tech, clones weren’t as useful in the more industrialized worlds, and there was a not-so-subtle bias against clones as a ‘Fringer issue’.
The Jedi took a strong stance against clone exploitation, recognizing that as living creatures they were a part of the Force and no different than natural-born sentients. Despite their vow to remain aloof from politics, they used sympathizers and proxies to help enact the Clone Rights Act, which acknowledged clones as full citizens of the Republic.
Nothing moved swiftly through the Senate, however, and seditious elements in the Fringe had ample time to prepare. Almost immediately after the passage of the CRA, a number of systems declared themselves independent of the Republic. Though the Jedi wished to remain apart from the conflict, several defied the Jedi Council and fought against the separatists.
After twenty long years, the Republic had won the battles, yet somehow lost the war. Measures restricting freedoms were passed almost unanimously, a strident anti-alien sentiment became commonplace among the human dominated bureaucracy, and the atrocities committed by both sides left worlds devastated and the civilian population willing to accept anything to end the suffering. By the time Senator Palpatine declared himself Emperor, few realized the consequences, and fewer still had the will to resist.
Palpatine seized on the Jedi refusal to fight on the side of the Republic and issued Order 66, outlawing the Jedi and leading to their near-extermination. The reconquered outer systems were treated as occupied territory and garrisoned with Imperial stormtroopers. Though denied representation in the Senate and forbidden to maintain military forces, they were allowed some local autonomy so long as they stayed in line.
The final sad postscript to the Clone Wars came when the Kaminoans, distraught at the horrors their technology had inadvertently wrought, retreated to their homeworld and triggered a doomsday device. Kamino was wiped clean, killing every last one of the inhabitants and destroying all traces of the closely-guarded cloning tech.
A (relatively) small part of the rebel systems managed to strike a separate peace with the newly-formed Empire. This ‘Corporate Sector’ is essentially a corporate plutocracy, with the almost no popular participation on government. The bulk of the Fringe clones were relocated here in the waning days of the war.