They were not, however, enough to prevent an assault by the Sinestro Corps, which resulted in the deaths of many Green Lanterns.

# Lethal force is authorized against the Sinestro Corps.

After the Green Lantern Sinestro betrayed the Green Lantern Corps and created the Yellow Lantern Corps, a prophecy was fulfilled that Lantern Corps of the other cosmic energies of emotion shall form, such as Red ( rage ), Orange ( greed ), Black ( death ), White ( life ), Indigo ( compassion ), Blue ( hope ), and Violet ( love ).

The decision of the Corps to execute Sinestro resulted in the activation of a previously unknown fail-safe that depowered the rings of every Green Lantern except for Hal Jordan, Guy Gardner, Gnort, and Ch ' p.

Rogue Green Lantern Sinestro, working with the Anti-Monitor, created his own version of the Corps.

Dubbed the " Sinestro Corps ", it recruited beings capable of generating great fear.

One of the members recruited into the Sinestro Corps was Amon Sur, the son of former Green Lantern Abin Sur, who held a grudge against Hal Jordan for being chosen to bear his father's ring instead of him.

Armed with yellow Power Rings and Lanterns manufactured on Qward, the Sinestro Corps staged an attack on Oa, killing dozens of Green Lantern Corps officers, kidnapping Kyle Rayner, and freeing Superboy-Prime, Parallax, and the Cyborg Superman from the Corps ' supervision.

This distinction played a part in the expulsion of Laira from the Green Lantern Corps for killing Amon Sur when he was unarmed, her induction into the Red Lanterns, and subsequent death over the course of events during the Sinestro Corps War and Blackest Night storylines.

Following the Sinestro Corps War, Ganthet and Sayd are banished from the Guardians.

The Green Lantern corps, along with the other six corps ( The Sinestro Corps, the Red Lantern Corps, The Indigo Tribe, The Blue Lantern Corps, The Orange Lantern corps, and the Star Sapphires ), fight the black lanterns to regain safety and order in the universe.

Hal takes the Sinestro Corps ring, Guy takes the Red Lantern ring, John takes the Indigo Tribe ring, and Kyle takes the Blue Lantern ring.

As of 2011, Sinestro is still an unwilling Green Lantern, Hal remains exiled ( although he has been forced to assist Sinestro's activities with a ring created and powered by Sinestro ) while Kyle has gone AWOL alongside six members of the other Lantern Corps.

Sinestro claims he has achieved his overall goal because now the Green Lanterns spread fear by being unchecked.

Lady Quark appears again in several splash pages of Tales of The Sinestro Corps: Superman-Prime ( December 2007 ), and again in a double page spread of Legionnaires and characters associated with the Legion of Super-Heroes in Final Crisis: Legion of 3 Worlds # 5 ( July 2009 ).

When Kyle Rayner accidentally travelled through time to ten years in the past and met a young Hal Jordan, the Guardians were able to send Rayner back to his own time by using the power from the Central Battery after Jordan and Rayner defeated Sinestro together.

In the mist of the chaos, Sinestro gave Hal Jorden a temporary ring to help him out on missions, but the Guardians attacked them and both rings merged and became faulty and thought Sinestro and Jordan apparently dead so it went in search of a new Lantern, Simon Baz.

After the Sinestro Corps War, the Guardians create a new class of Green Lantern called the Alpha Lanterns.

After Krona's death, the Guardians went into deliberation on the future of the Corps when Sinestro was chosen by a Green Lantern Power Ring.

Afterward, the Guardians of the Universe allow Sinestro to become a Green Lantern once more.

Later, when the Green Lantern Corps are in disagreement and attempt to kill Sinestro, the Corps break into the sciencells, but the Corps discover that the Guardians have in captivity with Sinestro, who are trying to remove Sinestro's green ring, but the ring will not be removed.

With Kyle Rayner having rebelled against the Guardians to join the ' New Guardians ' a makeshift team consisting of representatives from all seven Corps, Hal Jordan's recent expulsion, and based on the ' recommendations ' of the now-emotionless Ganthet, the Guardians are preparing to create the ' Third Army ' to replace the Green Lantern Corps, which involves them recovering the mysterious ' First Lantern ' for an undefined role, prompting Sinestro, who learned about this prophecy after touching the Book of the Black, to enlist Hal's aid in stopping this scheme.

The Guardians intervene with the Black Lantern, Black Hand, charging him up with enough power to drain Green Lanterns Hal and Sinestro, which apparently kills them both.

In the reality of Superman & Batman: Generations, the Guardians revealed that Alan Scott's power ring was actually a Green Lantern ring despite its apparent weakness to wood after Hal Jordan successfully harnessed it against Sinestro, realising that the ring actually had no weaknesses except what the user believed it possessed ; the Green Lantern Corps were vulnerable to yellow only because they believed the Guardians when they were told about this weakness, and Alan's ring's weakness to wood was caused when he was taken by surprise and struck on the back of the head with a wooden block during his first time using the ring.

Ganthet was the only supporter of Hal Jordan before the rest of the Guardians ; he would even help Jordan when he tries to find his ring during the battle against Sinestro.

Geoff Johns revealed that " The Sinestro Corps have its own Oa-type planet, its own Guardians, its own oath.

Sinestro, knowing this would mean not being a Green Lantern himself, instead allowed him to die and took over his post, the Guardians were unaware of his actions.

For using the power of the Green Lantern to instill fear rather than combat it, the Guardians banished Sinestro to the antimatter universe, a counterpart to the " real " universe made up of " negative matter ".

Sinestro ended up on the Antimatter world of Qward, that universe's counterpart of the Guardians ' homeworld Oa, which was ruled by a race of warriors and scientists known as the Weaponers of Qward, who bore a fierce hatred of the Guardians and all Green Lanterns.

By exiling Sinestro to a world ruled by evil beings who specifically hated him as a Green Lantern, the Guardians hoped to humble him.

Through their mutual hatred of the Guardians, Sinestro and the Weaponers became allies, with the Weaponers offering to help Sinestro gain revenge on the Guardians and the Corps.

When Nekron is defeated, Larfleeze takes the ring from Luthor, leaving him powerless, and allows Luthor to remain on Earth with the Green Lanterns ( although Sinestro notes that this is the first time Larfleeze has given anyone anything ).

He's the first to defend Sinestro when Hal warns him of his deception, even though Kilowog confirms it, and was willing to let Sinestro explain himself.

This was used in their first three appearances, but during the first appearance of Sinestro it was blocked to prevent Green Lantern entering their Universe.

Sinestro first appears in Green Lantern ( vol.

Pre-Crisis Sinestro first met Hal when he had already made an alliance with Qward.

At one point, the corpse even alters itself to look more like a living person and addresses Sinestro by his full name ( revealing his first name, Thaal, for the very first time ).

In the first issue of the " New Guardians " story arc, Sinestro reveals that the white power battery wants Hal Jordan.

* Sinestro has been prominently featured in Challenge of the Super Friends ( where he was part of the " Legion of Doom ") voiced by Vic Perrin for the first three episodes and from then on by Don Messick.

* Sinestro first appears in the Superman: The Animated Series episode " In Brightest Day ..." voiced by Ted Levine.

The first act of this stranger's plan occurs with the abduction of the fear entity, Parallax, during the finale of " Blackest Night ", imprisoning the creature within the pillar marked with the symbol of the Sinestro Corps.

He first appeared in Crisis on Infinite Earths # 2 ( although he remained in shadow until Crisis on Infinite Earths # 5 ), and was destroyed in Crisis on Infinite Earths # 12, only to return after a long absence in Green Lantern: Sinestro Corps Special # 1 ( Aug. 2007 ).

He had been involved in the lead up to " The Blackest Night ", being one of the first to deal with a new Star Sapphires member, and fought on Oa after the Guardian Scar caused a mass prison break of Sinestro Corpsmen.

After Sinestro becomes a White Lantern, he views the history of the emotional spectrum, and discovers that the first creature in existence to feel fear had evolved into Parallax.