All the Light Side Factions during the Clone Wars, Galactic Civil War, and First Order-Resistance War.
The Galactic Republic had governed the galaxy for 2,000 years peacefully. When a number of worlds had chosen to leave the Republic, and join the Confedracy of Independant Systems. Talks of war began to ensue. After the discovery of a clone army on the planet Kamino, by Jedi Master Obi-Wan Kenobi, it was revealed to him that, desceased Jedi Master Sifo-Dyas ordered it's creation. After the Battle of Geonosis, the Clone Wars had begun, and lasted for 3 long and bloody years on a galactic scale conflict.
https://starwars.fandom.com/wiki/Galactic_Republic
After the Galactic Empire rose to power after the Clone Wars. and destroying the remains of the Galactic Republic, multiple systems ahd seretly began building a rebellion. Comprised of thousands of worlds from the Clone Wars, planets declaring rebellion against the Empire, and former worlds under Imperial control. The Rebel Alliance, used uncoventional tactics against the Imperial Army and Navy. Hitting vulnerable targets, hit and run attacks, starfighter ambushes, and the ocasional large-scale battle, The Rebel Alliance would later show the galaxy that hope can triumph over any tyrannical regime.
https://starwars.fandom.com/wiki/Alliance_to_Restore_the_Republic
Thirty years after the fall of the Galactic Empire. The New Republic was established and governed the galaxy, without opposition. However, in the Unknown Regions,an old enemy had returned, THe First Order. Beliving that the First Order was a serious threat, Leia Organa began building a Resistance movement to combat the Order. With most of the New Republic, refusing to assist her, a majority of systems secretly supplied her with ships, troops, and supplies. Though they wee massively outnumbered and outgunned, the gathering information from spies and deectors to outwit the Order. It wasn't until the Battle of Exegol, where the Resistance saw true victory.
https://starwars.fandom.com/wiki/Resistance
All the Dark Side Factions during the Clone Wars, Galactic Civil War, and First Order-Resistance War.
Comprised of over a thousand star systems that viewed the Republic, too corrupt to govern the galaxy, the Confedracy had banded together to declare independance from the Republic. Backed by numerous corperations , and former Jedi turned Sith, Count Dooku, the Separatist movement would later go to war for three long years. Armed legions of Droid starfighters, infantry, and vehicles. The Separatists' had created the most powerful droid army the galaxy ever saw.
https://starwars.fandom.com/wiki/Confederacy_of_Independent_Systems
With the Clone Wars ending with the eradication of the Separatists, and the decimation of the Jedi Order. Supreme Chancellor Palpatine declared himself Emperor, and turned the Republic into the first Galactic Empire. Using fear, an assortment of deadly weapons and vehicles, and a Navy larger than the Republic Navy, the Empire stood as a force to be feared throughout the galaxy, Led by the Sith, The Empire spread like a cancer across the stars.
https://starwars.fandom.com/wiki/Galactic_Empire
Thirty years after the fall of the Galactic Empire, The New Republic had governed the galaxy. However in the Unknown Regions emerged the First Order. Comprised of former Imperial officers and high ranking officials in the Empire. Still beliving the Empire was the true regime. Upgrading their military power over the Empire, and ruthless generals and soldiers. The First Order rose like a shadow of the past. After hearing a broadcast of revenge from the supposedly dead Emperor Palpatine, The First Order would be renamed the Final Order signifiying the return of the Sith.
https://starwars.fandom.com/wiki/First_Order
https://starwars.fandom.com/wiki/Final_Order