Wookieepedia:Featured article queue/June 25, 2011

X1 was a Force-sensitive clone trooper who served the Galactic Republic and later the Galactic Empire. Along with his brother, X2, he was created by the Kaminoans from the DNA of a Jedi Knight, Falon Grey, and grew up in secret on the planet Kamino. Following the outbreak of the Clone Wars in 22 BBY, X1 and his brother joined the Grand Army of the Republic and fought in many battles of the war, helping to train young clone troopers under the eye of Jedi Master Ferroda. During a battle on the planet Cato Neimoidia, however, Order 66 was enacted, and X1 and his brother were forced to kill Ferroda. As the new Galactic Empire rose in power, X1 and X2 served in its military ranks as stormtroopers. Following a mission to Dantooine to kill a fugitive Jedi, X1 and his brother took separate paths. Not willing to kill innocent people who were harboring their target, X2 defected from the Empire, siding with the Jedi.

Following his brother's defection, X1 personally led an attack on Dantooine. He killed the Jedi on the planet&mdash;none other than his genetic "father," Falon Grey&mdash;and left X2 to die after wounding him, though the latter survived. X1 continued to serve the Imperial Military for many years, playing a minor role in the construction of the first Death Star battlestation and also gaining some mastery of the dark side of the Force. At the Battle of Hoth in 3 ABY, X1 commanded the Imperial-class Star Destroyer Avarice. Inside the ship, he met his brother&mdash;who had joined the Rebel Alliance&mdash;dueled him, and fled. After the Battle of Endor and the death of Emperor Palpatine in 4 ABY, X1 became one of the many Imperial warlords fighting for control of the shattered Empire. He also proclaimed himself a Sith Lord and operated from Bast Castle on Vjun, the fortress of the late Darth Vader. During this time, he also gathered around him a sizable military force, including an Executor-class Star Dreadnought.

Corrupted by power, X1 began to have dreams of galactic domination, hoping to achieve this by creating a personal clone army. He began performing cloning experiments on the planet Dathomir and on the fiery world of Mustafar, to where X2, now a Jedi Knight in Jedi Master Luke Skywalker's New Jedi Order, tracked him. Skywalker went ahead to stop him, but X1 captured the Jedi, intending to use his genes for his clone army of Dark Jedi. Hoping to rescue Skywalker and defeat X1, X2 and the New Republic&mdash;the Rebel Alliance's successor state&mdash;attacked the planet in a climactic battle. X1 dueled his brother multiple times, first aboard one of his Star Destroyers and then on the surface of the planet. Finally, X1 confronted his brother one last time on a mining platform, and X2 defeated him but refused to strike a final blow. X1 then tried to kill his brother by manipulating his lightsaber with the Force, but X2 evaded the attack, and X1 was stabbed by his own weapon and fell into the planet's boiling lava to his death.