[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/rsz_2riseofthethirdarmy_6094.jpg]]The first BatFamilyCrossover for Franchise/GreenLantern after the {{New 52}}, this story is a continuation of the plots already laid out by GeoffJohns. Unable to learn from their mistakes surrounding the Manhunters or their perceived mistakes with the [[SpacePolice Green Lantern Corps]], [[EnigmaticEmpoweringEntity the Guardians of the Universe]] decide that, rather than their own censorship policies and internal errors, the problems with the universe are due to TheEvilsOfFreeWill. After forcing EmotionSuppression on [[OnlySaneMan Ganthet]], they decide to make their own, viral army that they name their [[TitleDrop Third Army]], after the Manhunters and the Corps, [[FaceHeelTurn to spread order throughout the galaxy at the expense of free will]].

The outcome of this event leads directly into ''ComicBook/WrathOfTheFirstLantern'', the concluding arc of GeoffJohns' run on Franchise/GreenLantern.

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* AllYourPowersCombined: ''New Guardians'' focuses on Kyle Rayner learning to control the seven colors of the emotional spectrum. In ''New Guardians'' #16, he masters them all and [[spoiler:becomes a White Lantern]].
* AndIMustScream: The climax has the Guardians call the Green Lantern Corps to come to Oa for "innoculation" against the Third Army. They freeze them in place to make them easy prey for the Third Army, but the Lanterns can still hear and move their eyes.
* AndNowForSomeoneCompletelyDifferent: Sinestro and Hal are taken out before the Guardians do anything, and Sinestro's ring finds a man named Simon Baz.
* AssimilationPlot: Given that the Third Army's modus operandi is to assimilate organic entities into beings like themselves, this was a given.
* BigBad: The Guardians of the Universe.
* BrainwashedAndCrazy: The Guardians start out by erasing Ganthet's emotions so he won't object to their plan.
* ClearMyName: Simon Baz plans to use his ring for this. The Third Army gets in the way of that plan.
* EmotionSuppression: The Guardians' plan for the Third Army. One mind, under Guardian control, with no capacity for emotion.
* EverythingsNuttierWithSquirrels: Ch'p is a H'lvenite, which means he just happens to be the exact size and shape as the common Earth squirrel. He also happens to be a member of the Green Lantern Corps.
* EyesAreUnbreakable: When the Third Army assimilates someone, the only thing left unchanged is their eyes.
* FaceHeelTurn: After a long time being just extremely unhelpful or detrimental for ostensibly noble causes, the majority of the Guardians have finally crossed this line.
* GenreSavvy: Simon Baz hasn't got a chance against the Justice League and he knows it, and tries to convince them he's innocent. Too bad Sinestro's ring has other ideas.
* GoForTheEye: In ''Red Lanterns'', Atrocitus finds that the best way to fight the Third Army is to go for the eyes.
* HeroicSacrifice: [[spoiler: Sayd, to save the New Guardians. [[ComicBookDeath It doesn't take]].]]
* HumanResources: How the Third Army gains new members.
* ImplacableMan: Applies to the entire Third Army. It takes a lot to put one of them down.
* JumpingOffTheSlipperySlope: The Guardians have made plenty of questionable decisions before, but attempted omnicide is a whole new level.
* LivingBattery: The First Lantern is the power source for the Third Army.
* MythologyGag: Volthoom is named after a character from Earth-3 who had a connection to the evil counterpart of the Green Lantern.
* NeverMyFault: The Guardians, despite their numerous massive screw-ups (with several instances of ApocalypseHow under their belt), and despite every one of these mistakes being the result of "logical", emotionless decisions, have decided that emotion is the universe's Number 1 Problem.
* NiceJobFixingItVillain: The Guardians release Volthoom from captivity in order to use his powers to make the Third Army. This leads into an even worse conflict against the aforementioned First Lantern.
* NoMouth: People lose their mouths when assimilated by the Third Army so they won't talk back to the Guardians.
* NoSell: Due to being made from Oan flesh, GreenLanternRing capabilities, at least from that specific type of Lantern, are completely ineffective against the Third Army. [[spoiler:White rings are much more useful.]]
* NotSoDifferent: The First Lantern is a sadistic monster who happily points out the Guardians aren't exactly much better.
* OmnicidalManiac: The Guardians.
* OnlyMostlyDead: Hal Jordan and Sinestro.
* PhlebotinumBreakdown: Simon's ring isn't working properly, and is severely drained on top of that.
* {{Prologue}}: Of a sort to ''ComicBook/WrathOfTheFirstLantern''.
* ReasonableAuthorityFigure: Agent Fed, the only person outside the Lanterns and the Justice League willing to listen to Simon.
* RunningGag: Humans having problems on seeing Ch'p.
* SealedEvilInACan: The First Lantern, whom the Guardians of the Universe use to power the Third Army.
* TheEvilsOfFreeWill: The Guardians' motivation for creating the Third Army. Despite all the disastrous coldly logical decisions they've made in the past, they decide that emotion and free will are the sources of all the suffering in the universe.
* TheReveal: There are more Malthusians alive, guarding the Chamber of Shadows.
** Hal and Sinestro's host in the afterlife? It's Tomar-Re.
* TheUndead: Black Hand
* TonightSomeoneDies: How the Green Lantern annual that started off the event was advertised.
* WhamLine: "Volthoom - The First Lantern - will have his revenge."