Sith

The Sith (or the Sith Order, also known as the Order of the Sith Lords) are an organization and order of dark side Force users in the Star Wars universe. The first Sith were once Jedi before they turned evil and embraced the Dark Side of the Force. They were eventually destroyed by Anakin Skywalker (formerly Darth Vader) when he sacrificed himself to save his son, Luke Skywalker, from Emperor Palpatine.

Description
As depicted in the franchise's canon, Sith lords dedicate themselves to the Dark side of the Force which is accessed through negative, uncontrolled, or aggressive emotions and feelings, such as fear, pain, anger, hatred, rage, greed, intense desire, despair, craving, lust, desperation and unrestrained passions. Using any of these emotions while being a Force user, and thereby using the Force, would cause the Dark Side to enhance these emotions beyond the control of the individual, sometimes to the point of mental or emotional instability. It could warp the personality of the individual into a more evil one and turn them to the Dark side.

The Sith members, known by the ranks of Sith apprentice, Sith Lord and Sith Master, traditionally use the title Darth before their Sith name. The Sith are the archenemies of the Jedi and, like them, their main weapon is the lightsaber, only with all of these having a red krystal and blade. They only exist two at a time; a master and an apprentice, and are the main antagonists in the Star Wars film series as well as in many other Expanded Universe works. The Dark side represents a corruptible and addictive aspect of the Force that is not practiced by the Jedi, who view it as evil. It should also be noted that while a Force user uses the Dark side, they are not a part of the Sith Order unless they were trained by a Sith Master and made a Sith.

The Sith are governed by a Council, consisting of some of the strongest, wises and most powerful members of the Sith Order.

Dark Lord of the Sith is a title given to the leader of the Sith Order, and head of the Dark Council; only the strongest, wises and most powerful member of the Sith Order is given this title.

Rule of Two
The Rule of Two was a Sith philosophy mandating that only two Sith could exist at any given time; a master to embody power, and an apprentice to crave it. Recognizing that it was Sith greed and infighting that was leading to their destruction, the philosophy was created by the ancient Sith Master and Dark Lord of the Sith, known as Darth Bane, so the Sith could operate in secret, using subterfuge to plot their revenge against the Jedi. Though Darth Bane was eventually killed by the Jedi, his apprentice survived to carry on the Rule of Two, allowing the Sith to stay hidden for more than a millennium and continue their conquest of the galaxy from the shadows. Another trait of the Rule of Two is when the apprentice is powerful enough and desires to become the master, the apprentice must kill his former master in order to take his place before taking his own apprentice. The Rule of Two was eventually destroyed by Darth Vader, (Anakin Skywalker) at the Battle of Endor, when Vader sacrificed himself for his son, Luke Skywalker, by killing Emperor Palpatine, fulfilling an ancient prophecy of Anakin destroying the Sith to bring balance to the Force. With the Rule of Two destroyed, the last Sith Lords were extinguished from the galaxy. They were eventually replaced thirty years later by the Knights of Ren, a new group of Dark Side warriors that were led by Vader's own grandson, Kylo Ren, and his master, Supreme Leader Snoke.

Dark Council
The Dark Council (or the Sith Council) is a fictional institution from the Star Wars film series. The Dark Council are comprising of some of the strongest, wises and most powerful members of Sith Order, and are elected to lead the Sith. Generally, it is the dark equivalent to the Jedi High Council.

History
The Dark Council was comprised with the strongest, wisest, and most powerful members of the Sith Order, elected as the ruling body of the Sith Empire and to guide the Sith, as well as serve as an advisory body for the Dark Lord of the Sith/Sith Emperor. The earliest known Dark Council was around 3681 BBY.

After the end of the Seventh Battle of Ruusan, also known as the New Sith Wars, the majority of the Dark Council (along with the other Sith) were all believed to have been wiped out, however, unknown to the Jedi Order and the Galactic Republic, there was still one surviving member of the Dark Council; Darth Bane, Bane created the Rule of Two, so the Sith could operate in secret, using subterfuge to plot their revenge against the Jedi; for a thousand years, there have only been two members of the Dark Council, a Sith Lord and a Sith Master. The Dark Council was destroyed when Darth Vader destroyed both Palpatine and himself at the Battle of Endor, and was later succeeded by the Knights of Ren.

Organization and politics
Members of the Dark Council are those who have the rank of Sith Lord or Sith Master, Dark Lord of the Sith, is a title given to the leader of the Sith Order, and head of the Dark Council; he/she can overrule the decision that the council made regarding matters of the Sith order, such as expelling or executing a member of the Sith order, the Dark Lord of the Sith can also change the Sith code or the Sith teachings.

Known Sith ranks

 * Sith Acolyte: Sith Acolyte is a rank granted to Force-sensitive children, adolescents or adults who have completed the Sith Trials, and trained by a Sith instructor in basic lightsaber training and in the ways of the Dark side of the Force, until they are assigned or selected by a Sith Lord or Sith Master.
 * Sith apprentice: Sith apprentice is a rank granted to Force-sensitive children, adolescents or adults who are under the tutelage of a single Sith Lord or Sith Master, a Sith lord or Sith master are forbidden to have more than one apprentice, a Sith apprentice is under the tutelage of his/her Sith teacher until he/she has gained considerable knowledge of and strength in the Dark side of the Force.
 * Sith Lord: Sith Lord is a rank granted to very powerful Sith who have both considerable knowledge of and strength in the Dark side of the Force, it is the second highest rank in the Sith Order.
 * Sith Master: Sith Master is a rank granted to a few Sith Lords, depending on their skills in lightsaber combat, knowledge of Dark side of the Force, wisdom, experience, if they have killed their former Sith teacher, or if they have successfully trained two Sith apprentices as Sith lords, typically one right after the other. It is the highest rank in the Sith Order.

Known Sith military ranks

 * Sith Commander: Sith Commander is a rank granted to a Sith apprentice, Sith Lord or Sith Master, who serves as commanders within the Imperial Military, they also served as third-in-command to a Sith General.
 * Sith Admiral: Sith Admiral is a rank granted to a Sith apprentice, Sith Lord or Sith Master who serves as admirals within the Imperial Military, they also served as second-in-command to a Sith General, it is the second highest rank that a Sith can achieve in the Imperial Military.
 * Sith General: Sith General is a rank granted to a Sith apprentice, Sith Lord or Sith Master who leads the forces of the Imperial Army, who serves as generals within the Imperial Military, it is the highest rank that a Sith can achieve in the Imperial Military.

Known Sith titles

 * Sith Juggernaut: Sith Juggernaut is a title granted to Sith who are highly skilled in lightsaber combat and unarmed combat.
 * Sith Marauder: Sith Marauder is a title granted to Sith who are highly skilled in dual lightsabers and dealing high amounts of damage to enemies in melee combat.
 * Sith Inquisitor: Sith Inquisitor is a title granted to Sith who are highly skilled in manipulator.
 * Sith Overseer: Sith Overseer is a title for Sith who are appointed by the Dark Council; to oversee all Sith Acolytes' instruction of the Sith Order's Sith academies.
 * Sith'ari: Sith'ari is a title for Sith who would rise to power to lead the Sith Order and make it stronger than ever, it is the second highest title in the Sith Order.
 * Dark Lord of the Sith: Dark Lord of the Sith is the title granted to a Sith who is the leader of the Sith Order, and head of the Dark Council, it is the highest title in the Sith Order.

Known Sith classes

 * Sith Warrior: Sith Warrior is a class of Sith who specialized in lightsaber combat and dual-lightsaber combat, they have huge amounts of strength, speed, endurance and stamina, they are known for wearing armor that provides them special protection in battle, they are also known to primarily wield one or two lightsabers in combat, and are frequently adept at using the Force to cause terror and despair in enemy combatants.
 * Sith assassin: Sith assassin is a class of Sith who specialized in stealth and dealing high amounts of damage to enemies in melee combat, they are known to primarily wield a double-bladed lightsaber in combat.
 * Sith sorcerer: Sith sorcerer are a class of Sith who specialized in Sith alchemy, Sith magic or both, they also specialized in ranged attack abilities with the Force, such as Force lightning and Force drain, they are known to primarily wield one lightsaber in combat, and are adept at variant applications of force lightning in combat.
 * Sith instructor: Sith instructor are a class of Sith who specialized in teaching Sith Acolytes, in basic manipulator, lightsaber combat, unarmed combat, and Sith magic etc.; until they are assigned or selected by a Sith Lord or Sith Master.

Known Sith Teachings and Code

 * Peace is a lie, there is only passion:
 * Through passion, I gain strength:
 * Through strength, I gain power:
 * Through power, I gain victory:
 * Through victory, my chains are broken:
 * The Force shall free me:

Notable Sith Lords

 * Darth Bane (Sith Master; Dark Lord of the Sith; deceased)
 * Darth Plagueis (Sith Master; Dark Lord of the Sith; deceased)
 * Palpatine (Sith Master; Dark Lord of the Sith; deceased)
 * Darth Maul (Sith Lord)
 * Count Dooku (Sith Lord; deceased)
 * Anakin Skywalker/Darth Vader (Sith Lord; formerly; broke away from the Dark side of the Force)