->''"Let these heroes rise."''
->''"Let them fight."''
->''"Let them save us."''

[[caption-width-right:229:To be... or not to be.]]
The MarvelComics CrisisCrossover from late 2009/early 2010, following Comicbook/CivilWar, SecretInvasion and Comicbook/DarkReign.

Asgard, which has always been located in AnotherDimension, has been recreated in Oklahoma. Loki wants it to return to its own dimension, and convinces Norman Osborn to launch an all-out attack on the city. Norman agrees, he does not like to have a city of gods on US soil. They stage an incident similar to the one that began the Civil War, to get public acceptance for the attack. The president orders to stop it, but Norman goes on anyway... and H.A.M.M.E.R. is outlawed in the process. All the other fugitive heroes team up as well, to defend Asgard from Osborn's forces.

In the end, Osborn is defeated, but the battle left many casualties and the city was destroyed in the process. The heroes that were outlawed since Civil War become legal again, the superhero registration act is repealed, and Norman Osborn is sent to prison.

For the trope, see TheSiege.

!!Provides Examples Of:

* AlasPoorVillain: The fate of Loki, who arranged everything to remove Asgard from the mortal dimension, tries to turn against the Void when things get out of hand, and dies as a result. Also for the Sentry, who claimed that [[GollumMadeMeDoIt the Void made him do it]], before pleading the heroes to execute him. Osborn made a similar excuse, but keeping being a WellIntentionedExtremist.
* AmericanRobot: Iron Patriot.
* AndTheAdventureContinues: ''Siege'' was the end of the ''Mighty Avengers'' comic book. The team had dispersed, and only Henry Pym and Jocasta stayed at the mansion to deal with Ultron. They get rid of him, just in time to join the battle in Asgard. And although the team had dispersed, they met by their own at the place; the final panel of the comic book shows Pym leading them to battle for the last time.
** The end of the main ''Siege'' storyline, when Steve Rogers announces that he will need everyone for upcoming things, may be considered a case as well. However, it's a mere mention, with the characters standing there, and not a "charging into battle" finale.
* BatFamilyCrossover: Aside from the main ''Siege'' series and some one shots revolving around characters who weren't getting much page time in the main story (Such as Spider-Man and the Young Avengers), the only titles that tied into ''Siege'' were ''ComicBook/NewAvengers'', ''Mighty Avengers'', ''Avengers: The Initiative'' and ''{{Thunderbolts}}''. The ''Mighty Avengers'' ties to the event were at first tenuous at best, with the tie-in issues focusing on Ultron's attack on the Infinite Avengers Mansion at the same time as ''Siege'' takes place but leads into the Thunderbolts tie in; comparatively ''The Initiative'' focused on some of Osborn's more sane allies like Taskmaster realizing the plan had gone completely off rails and the Avengers Resistance mounting an attack on Camp H.A.M.M.E.R to keep the cavalry at bay, and ''New Avengers'' provided the lead-up to the Avengers heading to Asgard, with the later issues serving the same purpose as the one-shots by focusing on Hawkeye and Mockingbird.
* {{BFG}}: Nick Fury dosn't go anywhere without one.
** Bucky uses one, after he gives Steve the shield so that he can lead the Avengers in to battle as Captain America.
** Maria Hill with her massive bazooka, which she uses as she rescues Thor.
* BigDamnHeroes: How the Avengers arrive to help Thor and the Asgardians.
* BodyHorror: When [[spoiler: Sentry gets his ass kicked by Thor, and starts transforming into the Void. Same thing happens when Ares manages to hit him with his axe.]]
* CarFu: Iron Man takes remote control of the main HAMMER helicarrier and rams it into the Void.
* ColonyDrop[=/=]DeathFromAbove: Iron Man dropping the HAMMER helicarrier on the Void.
* CrisisCrossover
* CurbStompBattle:
** Osborn and his men beating the living hell out of Thor.
** [[spoiler:Sentry's "[[HalfTheManHeUsedToBe fight]]" with Ares.]]
** Iron Man vs. [[NormanOsborn Iron Patriot]]. [[spoiler:To the point where Stark ''doesn't even fire any of his weapons or physically attack Osborn to do it''.]]
** Thor vs Daken. It's one panel.
* DeathSeeker: The Void.
* DecompressedComic: Subverted. The main event requires no tie-ins and was only four issues long. Reading it feels like sprinting compared to ''SecretInvasion'' and most other Marvel events.
* DragonWithAnAgenda: Norman Osborn technically works for the president, but the invasion of Asgard was his own idea, which was even ressted at the White House
** Loki is also posing as Osborn's assistant, but he had his own reasons for manipulating him into invading Asgard. Unfortunately, his plans got out of control.
* [[DroppedABridgeOnHim Dropped Asgard On Him]]: The final fate of Thor's clone, the one from Civil War. He was beneath Asgard when the Sentry made it fall.
* EldritchAbomination: When [[spoiler: The Void begins to manifest]], he looks like a cross between a demon and a scorpion.
* EnemyMine: ComicBook/CaptainAmerica and ComicBook/IronMan join forces in earnest for the first time since ComicBook/CivilWar.
** More so with [[spoiler:Loki and the Avengers]].
* EnfanteTerrible: Phobos' rampage through the White House establishes that he is definitely his father's son.
* FreakOut: The Sentry has several in the various tie-ins. And then there's Norman's VillainousBreakdown.
* {{Gorn}}: [[spoiler: Sentry ripping Ares in half, with all of his intestines spilling out everywhere,]] was unnecessarily explicit.
* GrandFinale: For ''Comicbook/DarkReign'', and especially for ''Comicbook/CivilWar'' and everything after.
* HeelFaceTurn:
** Ares finally leaves the Dark Avengers, and tries to decapitate Osborn in the process. [[spoiler:[[ResignationsNotAccepted It doesn't last long.]]]]
** Victoria Hand has one in the aftermath, after realizing just what kind of whack-job she's been working for.
* HeroicSacrifice: [[spoiler:Loki at the end.]]
* HesBack: Captain America and Iron Man both return to action, each getting in a CrowningMomentOfAwesome with their first actions in the battle.
* HollywoodTactics: Instead of sending in the Sentry to destroy the city or using their superior technology to fight from a distance Osborn and HAMMER fought up close and personal giving Asgardians the edge. Justified in Osborn wanted a big, bloody battle to try and solidify his power base and he has ComicBook/{{Ares}}, a ClassicalMythology WarGod and BloodKnight, plan the attack. Ares had previously stated he leaves the thinking side of war to Athena while he focuses on bloody and glorious battles.
* HumiliationConga: [[spoiler:What finally happens to Norman in issue #3, and most would say, it's fitting. First CaptainAmerica, the living embodiment of all the principles Norman has spat on, comes back to life and announces it by hitting the villain square in the face with his shield, and then beating him in a one-on-one fight. The President of the United States orders him arrested for treason and has his flying base shot down. ComicBook/IronMan, whose technology Norman stole to turn himself into the Iron Patriot, comes back from ''brain death'' and shuts down Osborn's armor. When the costume falls off, Norman is revealed - on national television, no less - wearing clownish facepaint modeled on his old "Green Goblin" identity. And finally, as he rants about how the fight isn't over, {{Spider-Man}}, his oldest enemy, says [[ShutUpHannibal "Oh, will you shut up!"]] and decks him, knocking him out cold.]]
* IKnewIt: [[{{In-Universe}} After Osborn's]] VillainousBreakdown, Wolverine and the Human Torch both comment "Told ya." to Cyclops and Mr Fantastic respectively.
* KarmaHoudini:
** [[spoiler:Daken just passed off as an Army officer and slipped away scot-free.]]
** Subverted by [[spoiler:Moonstone and Bullseye]], who tried to escape but were recaptured immediately.
* KickTheDog: The whole event is basically one last attempt by Osborn to Kick the Dog.
* KillEmAll:
** [[spoiler:The WhatIf story released sometime later shows what happened if Ares decided to attack the Sentry before the battle started ,which does not end well.]]
** [[spoiler:Osborn's last act in the main story is to command the Sentry to destroy all of Asgard. It works.]]
* ManipulativeBastard: Norman Osborn, but that's par for the course. Specifically, he has the U-Foes attack Volstagg in Chicago in an attempt to manufacture a second [[ComicBook/CivilWar Stamford Incident]] and pin it on the Asgardians, so he has reason to justify an attack on Asgard against the President's wishes. [[GenreSavvy Ares even warns him that if he finds out that this is the case, he will end Osborn]] - [[spoiler:He does, but Sentry gets involved before he can actually kill Osborn]].
** The true ManipulativeBastard, however, was Loki, who was pushing Norman's buttons for months and is the one who gives Norman the idea for the attack and the inciting incident. And later we learn that the entire event was only the starting point of [[ComicBook/JourneyIntoMystery his master plan]].
* MercyKill: [[spoiler: [[TheMightyThor Thor]] to TheSentry]]
* MyGodWhatHaveIDone: [[spoiler: Loki's reaction to Sentry destroying Asgard - He just wanted Asgard off Earth, ''not turned into rubble''.]]
* OhCrap: Everyone's reaction when [[spoiler:Ares is ripped apart by the Sentry]]. ''[[EvenEvilHasStandards Even the villains]]''.
* ProphecyTwist: The previous day, one of the Asgardians told Tyr, the Asgardian god of war, that Ragnarok is coming, and that the god of war will die. [[spoiler:"Ragnarok" was actually Thor's cyborg clone, and the god of war that would die was Ares, from another pantheon)]]
* RemixComic: ''[[http://www.mwt-studios.com/?tag=siege Siege Reloaded]] gives the event a good ribbing.
* ShutUpHannibal: Spider-Man gives one to Norman Osborn.
* SuicideByCop: [[spoiler: The Void commits suicide by [[TheMightyThor thunder god]].]]
* TheCavalry: Osborn's party is interrupted by the good Avengers, [[MyFriendsAndZoidberg and Patriot]].
* VillainDecay: Count Nefaria, who previously was shown to be powerful enough to outfight the entire Avengers roster during their prime (including Iron Man, Captain America, Scarlet Witch, Quicksilver, Yellowjacket, Black Panther, Wonder Man, Thor, and Vision) literally single-handedly, is laid out by Wolverine and Ms. Marvel in three pages because he isn't an A-list villain. Partially justified, in that the New Avengers specifically planned out the quickest and most effective way to take him down, whilst he had no idea of the ambush.
* VillainousBreakdown: Osborn has a huge one at the end.
* WhatIf: [[spoiler:See KillEmAll.]]
* ZeroEffortBoss: Osborn vs Stark.