->''"People of Earth, we come in peace. However, most of you will not survive these next 24 hours."''
-->-- '''Gallaxhar,''' ''WesternAnimation/MonstersVsAliens''

[[SpaceAlien Alien]]s' FirstContact with Earthlings will go one of two ways, usually.

# [[InnocentAliens Peaceful aliens]] will be met with fear and greed, as humans try to kidnap, interrogate, dissect them, etc. They'll usually think the aliens want to attack. Said aliens may gain one or two human friends (the main characters) but most of the human race is shown to be primitive fools. HumansKillWantonly. It is a {{Subtrope}} of MisunderstoodLonerWithAHeartOfGold with its own flavor. Incidentally, this trope is a staple element of at least some parts of ufology, among those who believe in it.
# [[AliensAreBastards Evil aliens]] will either outright attack, or manipulate themselves into positions of power over humanity, made more easy by the hordes of naive humans who just want to be friends, which shows most of the human race to be primitive fools. Only a few will know the truth, and try to convince everyone else that [[ToServeMan "it's a cookbook!"]] This is a {{Subtrope}} of SubvertedSuspicionAesop with its own flavor.

It's a SchrodingersGun; mankind is either an aggressive oppressor or clueless victim, and never in the beneficial combination. The trope name comes from the signature line of "Captain Kirk" in the song [[http://www.youtube.com/watch?v=FCARADb9asE "Star Trekkin"]] by The Firm. (Contrary to popular belief, [[BeamMeUpScotty Kirk never actually said this on the show]].)

A subversion of IComeInPeace. Aliens who try this should read JustForFun/HowToInvadeAnAlienPlanet.



[[folder:Anime & Manga]]
* In ''Anime/StrainStrategicArmoredInfantry'', [[spoiler:the peaceful Emilies are dissected for their psychic power, leading them to attack; we learn from the two Emilies in the series that [[LastOfHisKind it doesn't go well]].]]
* The Arume in ''Manga/BlueDrop'' change policy regarding [[VichyEarth rule of the humans]] so frequently that they've gone through pretty much every point on this scale at least once in the metaseries.
* The Riofaldians in ''Manga/CannonGodExaxxion'' make a big show of being friendly with the humans when they first show up. Of course it turns out this was just a ploy to make preparations for their VichyEarth ambitions go more smoothly.
* In ''Manga/NausicaaOfTheValleyOfTheWind'', Princess Kushana and her trigger-happy Tolmekian troops murder the old king and round up the people of the valley like animals. Then Kushana acts unflinchingly polite asking the people the join them willingly.
* Happens in ''Anime/SpaceBattleshipYamato2199'', as Shima remarks early on that that when the Gamilans arrived a UN squadron with his father commanding one of the ships came out to greet them in peace and was fired upon, leading to his father's death... Except the Gamilans say it was the UN squadron to attack without provocation. It's later shown exactly what had happened: [[spoiler:the Gamilan squadron that discovered Earth and Okita's UN force moved in peace but [[ProperlyParanoid ready to attack at the first sign of foul play]], and before they could even learn each other's names [[GeneralRipper Serizawa sent the order to attack]], and when Okita refused Serizawa removed him from command and reiterated the order. [[LaserGuidedKarma Shima's father was the first to open fire, and the Gamilans immediately concentrated their fire on his ship with lethal effects]].]]

[[folder:Comic Books]]
* In [[Franchise/ArchieComics Archie's]] ''ComicBook/SonicTheHedgehog'', humans dissecting the occupant of a downed Xorda spacecraft caused the entire race to launch genetic bombs at the Earth, thus killing off most humans and causing evolutionary mutation that led to our furry friends, the Mobians, becoming a dominant species along with the human-like Overlanders.
* ''[[{{Superman}} Action Comics]]''. [[CrystalSpiresAndTogas An ancient and wise race]] is doomed by [[EarthShatteringKaboom planetary destruction]]. Their greatest scientist [[IgnoredExpert is ignored by his peers]], so he sends his infant son, the LastOfHisKind, to Earth, where his ship lands in a field outside a town called Smallville ... And because this is the [[FantasticRacism institutionally anti-alien]] Earth of the 31st century, Jun and Mara blast the infant with a laser-rifle and bury the remains behind the barn. They're still talking about how right they were to do so some months later, when they get killed in passing by a deranged AlternateUniverse Superboy. [[KarmicDeath That's karma for you]].
** Pretty much the same thing happens, without the KarmicDeath, in an issue of ''ComicBook/{{Planetary}}''. Except that the killer in question was a government operative there to salvage technology who showed no signs of considering the kid a threat, and simply thought that his boss wouldn't want to have to deal with it. Ironically, just after he did the order came in to bring the child in for study.
** [[InvertedTrope Inverted (for a Version 2)]] in both the last arc of Marvel's ''X-Man'' and the Maximum Security Crisis Crossover, in which a clueless farming couple attempt to rescue an "alien baby" who turns out to be a biosphere-devouring menace.
* ''ComicBook/ROMSpaceKnight'': Initially played straight as the villain [[VoluntaryShapeshifting shapeshifting]] Dire Wraiths are able to easily convince most of the people of Earth that Rom is a murderous marauder. However, this trope is later averted when the Dire Wraiths get more brazen and the Earth authorities realize that Rom's story about the menace of his enemies is real and throw their complete support behind the space knight, including making him field leader for hunting expeditions with SHIELD agents.
* The very first issue of ''ComicBook/PaperinikNewAdventures'' starts with the Evronians overwhelming the last Xerbian stronghold on their homeworld. Two issues later we find out from Xadhoom it was this trope in action: the Evrons, knowing that their army was superior to the Xerbian glorified police force but their ship wouldn't survive against the planetary defenses, sent ambassadors to sign a 'commercial agreement', and as soon as Xerba's planetary defenses were temporarily deactivated as sign of peace the Evronian 'freighters' disgorged hordes of soldiers, overwhelming the Xerbians in a matter of days, with Xadhoom returning on the planet just in time to see the end of the last stronghold.
** In ''Spores'' we discover the Evronians are trying the same thing on Earth, trying to lull the United States and a {{Ruritania}} in a sense of peace, with the implied reason being that Earth is the exact opposite of Xerba: the Evronians ''can'' land, but there's no guarantee their soldiers would win (in fact they got their asses handed to them by human troops four times on-screen, one of them showing that Evronians with air support will win, albeith with [[PyrrhicVictory heavy losses]], but as soon as the battle moved into the corridors of the attacked base the US Army needed just a couple minutes of pause to muster a counterattack that won the day with the power of MoreDakka). Also, they know that Earth weapons can shoot down their landing ships (a dozen assault helicopters at short range of one of their heavily armed assault ships were treated as an [[OneHitKO instant victory]] for the helicopters, and a blimp filled with TNT exploding near one of their 'Invasion Hives' in the upper atmosphere was enough to shoot it down), and while they know they can destroy our missiles they have no idea of how many nukes we have, and just one of them going off in a cluster of ships would annihilate them.
* [[ComicBook/BlueBeetle The Reach]] are a type 2. They are evil, manipulative, world conquering aliens, but they always present themselves as benevolent visitors.

[[folder:Films -- Animation]]
* ''WesternAnimation/TheIronGiant'': Everyone initially assumes the Giant is hostile despite lack of evidence that it's hurt anyone; Kent Mansley in particular refuses to be convinced to the end. [[spoiler:In a twist, he'd probably be right if it weren't for the damage to the Giant's programming; all the weaponry it carries combined with the [[IdentityAmnesia dent in its head]] fixing itself just before its RoaringRampageOfRevenge suggests its original purpose was less than friendly.]]
** [[spoiler:A deleted scene confirms this: A nightmare the Giant has, stemming from his damaged programming, reveals he is only one of an entire ''fleet'' of giants, built by an unknown alien race ostensibly for the purpose of being the vanguard to invasion.]]
* This is parodied in Gallaxhar's speech in ''WesternAnimation/MonstersVsAliens''. The [[WesternAnimation/MonstersVsAliens2013 animated series]] uses a more subtle version with Coverton acting as a [[TheMole Mole]] for an alien invasion after his attempt to remove Susan's powers failed.

[[folder:Films -- Live-Action]]
* Displayed quite nicely in ''Film/IndependenceDay'', in which a [[StrawmanPolitical horde of GenreBlind people]] has assembled atop a skyscraper waving "hello and welcome to Earth" placards as the alien spaceship positions itself directly over them... and then fires its massive "[[AppliedPhlebotinum frission]]" cannon, destroying the building and most of the city. Earlier, the government sent a helicopter rigged with [[Film/CloseEncountersOfTheThirdKind a grid of flashing lights]] to try and communicate: the aliens promptly blew it out of the sky.
** This is not only a darkly funny TakeThat to ''Film/CloseEncountersOfTheThirdKind'', but a ShoutOut to ''Literature/TheWarOfTheWorlds''. A group of astronomers tried to use semaphore flags to communicate their good will to a pit containing the Martian ship and a half-constructed tripod. [[HilarityEnsues Heat Ray-ity Ensues]].
* Subsequently parodied in ''Film/MarsAttacks'' The Martian ambassador comes up to a podium and speaks into a translation device, translating his words as "We come in peace". Then they whip out the rayguns and incinerate everyone in sight- at first, seemingly in response to a "cultural misunderstanding" where "dove means war", but it quickly turns out they are just doing it ForTheEvulz. Later, during the full-scale genocide, one of the Martians is carrying the translation device, which now broadcasts "Do not run! [[CrowningMomentOfFunny We are your friends]]!" over and over.
* ''Film/TheDayTheEarthStoodStill1951'' (the original) is the quintessential movie for demonstrating how badly humans would treat InnocentAliens.
** [[Film/TheDayTheEarthStoodStill2008 The 2008 remake]] zig-zags the Trope: [[spoiler:Klaatu's mission on this version is to KillAllHumans [[GreenAesop because we are a serious ecological threat to Earth]],]] but the way the United States Government treats him from the moment he accidentally gets shot (including being detained, interrogated, any information he gives told outright will be made classified, told he will ''never'' talk to the world's governments and apparently was going to be poisoned) [[spoiler:don't do much to make him believe his decision is wrong until Helen begs him to reconsider and the Professor brings up the logic that Klaatu's race was NotSoDifferent a long time ago.]]
* In the aptly titled ''Film/IComeInPeace'' there's an alien running around the city, who says "I come in peace" constantly, especially when he's murdering people.
* ''Film/{{Starman}}'' (the movie, and then the TV series based on it) was about a friendly alien who was hounded by the government. He first came to Earth in response to our friendly greetings carried aboard one of the Voyager probes... and was promptly shot down.
* ''Franchise/{{Gamera}}'':
** ''Film/GameraGuardianOfTheUniverse'' (1995) featured a variation. Although not aliens, the army incorrectly decides that Gamera, a benevolent AntiHero {{Kaiju}} created specifically to protect the Earth, is the real threat, while the evil, destructive, man-eating Gyaos are a nuisance by comparison.
** The third movie, ''Film/Gamera3AwakeningOfIrys'', has an interesting variation: while Gamera is shown in his darkest portrayal yet (a fight at the start of the movie with a Gyaos in Shibuya causes at least ''twelve thousand casualties'', at least half from Gamera's BreathWeapon, and he's proven to be an incarnation of GaiasVengeance), it's shown pretty conclusively that he's by far the best alternative despite this, as other monsters are far more hostile to humanity and likely won't stop until they or humanity are wiped out. [[spoiler: And besides, the last scene of the movie depicts a ''massive'' Gyaos outbreak (as in a flock of thousands of the buggers, ranging in size from a VW Beetle to stadium-sized) and a spent, wounded Gamera soldiering on and [[FinalBattle preparing to go and face them for the sake of humanity]].]]
* ''Franchise/{{Godzilla}}'':
** ''Film/InvasionOfAstroMonster '' has evil aliens claiming they need help to get rid of a giant monster known to the aliens as "Monster Zero" (it's [[spoiler:King Ghidorah]]) in exchange for your average intergalactic secrets, namely a miracle drug capable of curing any Earthly diseases. The earthlings are only too happy to send the [[ChaoticNeutral destructive]] Franchise/{{Godzilla}} and Rodan to stop Monster Zero. And, evil aliens being evil aliens, it turns out that they were controlling Monster Zero the whole time, at which point they use MindControl on Godzilla and Rodan as well and unleash all three monsters upon Japan.
** [[WholePlotReference Also]], ''Film/GodzillaFinalWars''.
** The [[SoBadItsGood laughably cheesy]] ''Film/GodzillaVsGigan'' has evil cockroach aliens disguised as humans who disguise their evil intentions via a Godzilla-themed amusement park.
** While technically not aliens, the Futarians from the 1990s film ''Film/GodzillaVsKingGhidorah'' qualify here. They act as if they're helping Japan by [[TemporalParadox removing Godzilla from history]], [[spoiler: but in reality they just need to get rid of Godzilla so they can replace him with their own monster, King Ghidorah]].
* Played as allegory in ''Film/{{District 9}}'', where despite evidently superior firepower the "prawns" take on the role of African refugees and generally accept their poor treatment.
** The vast majority were basically "worker bees" who didn't really do anything unless a "Commander" (like the one the main character teamed up with) gave them direction.
* Played with in ''Film/{{Moontrap}}'', where the scientist who wants to talk to the alien cyborg changes his mind after it shoots him and tells the security detail to "''Get the son of a bitch!''". Too bad he forgot that he is down-range.
* The 2012 sci-fi parody film ''Film/IronSky'' uses this as one of its tag lines. The film is about [[RecycledInSpace Space]] [[StupidJetpackHitler Nazis]] invading the Earth.
* Played with in ''Film/EarthVsTheFlyingSaucers''. The aliens want to make peaceful contact, but only to negotiate the surrender of a VichyEarth, as conquering Earth by force is not in their interests. The military in turn fire on their FlyingSaucer when it lands in the middle of an army base, having not understood their signal asking for a meeting (because it was transmitted at the wrong speed).
* Captain Picard normally strictly adheres to the [[AlienNonInterferenceClause Prime Directive]]. In fact, violating it is a bit of a BerserkButton for him. So naturally, when he has to visit a primitive inhabited world in ''Film/StarTrekNemesis'', he makes an effort to avoid contact with the natives. It fails spectacularly, and Picard, Worf, and Data find themselves in a high-speed gun battle with the locals. Adding insult to injury, they also give the natives their first look at a real-life spaceship while the away team makes their getaway.
* Ba'al in ''Film/StargateContinuum'' does this, even phoning the President to tell him that he comes in peace, knowing that a direct attack would make things much harder. It would have worked if there hadn't been a time traveling LaResistance waiting for his arrival. And if all his subordinates hadn't been {{Card Carrying Villain}}s, including [[spoiler:his lover, who betrays and murders him]] so they could attack.

* A somewhat clever twist occurs in one ''Literature/MaximumBoy'' novel where alien cows decide to visit earth: The cows state that they ''come'' in peace, but state that how they ''leave'' depends on what they find. [[AlienInvasion Sure enough.....]]
* ''Literature/TheHolyLand'', in which the [[EagleLand fundamentalist American government]] attacks -- first with tanks, then with PR -- pagan [[SpaceJews "Jews from space."]]
* Skewered in Creator/GeorgeAlecEffinger's hilarious 1984 short story, "The Aliens Who Knew, I Mean, Everything": the aliens who visit, called the Nuhp, really do come in peace, and really are willing and able to help solve at least some of Earth's problems. Unfortunately, they're also such an ''annoying'' bunch of know-it-alls, that their presence gradually becomes more curse than blessing. Eventually, humanity leaves Earth in droves to get away from the Nuhp... and the resultant population reduction solves the ''rest'' of Earth's problems by default. Turns out this happens on ''every'' planet the Nuhp visit, and space is filled with species that left their homeworlds to get away from them.
* Creator/StanislawLem's novel ''Literature/{{Fiasco}}'' features a human starship on a mission to "peacefully make contact" with the inhabitants of the planet Quinta. This proves difficult when they discover that Quintan civilization is consumed with an internal conflict that has led the antagonistic factions to garrison their entire solar system with powerful automated war machines. Despite the humans having a substantial technological edge over the Quintans, a series of misunderstandings, miscommunications, and double-crosses ensues, accompanied by escalating shows of force [[spoiler: that culminate in the humans blowing up the entire planet]].
* Happens with the Pitar in Creator/AlanDeanFoster's books set in the Literature/HumanxCommonwealth. They were so human in their appearance and character, so charming and affable, that Humanity went head over heels about them. Any suspicions were either ignored in this wave of enthusiasm, or quietly swept under the rug. Until the news got out (complete with gory footage) about a peaceful and unarmed colony utterly obliterated by the Pitar invasion fleet. Humans were ''not'' amused.
* The first encounter between humans and the the Kzinti (''The Warriors'', reprintedin the first ''Man-Kzin Wars'' collection) found the peaceful human explorers (whose society had abolished violence and war) on an unarmed ship being slowly roasted by an Kzinti warship whose captain wanted to kill the human crew without destroying their ship, having determined via a telepath that the humans had no real concept of war and have no weapons aboard their ship ... and then one of the humans realizes what is happening, and rotates the human ship to cut the attacking ship in half with [[WeaponizedExhaust the powerful laser the human ship utilizes as both reaction drive and communications device]] and loots the weapons off the wreck. The tag for the series was that humans had decided to study war no more because [[HumansAreWarriors we're too good at it]].
* Used as a cover story by the Grigari in ''Series/StarTrekDeepSpaceNine'''s ''Millennium'' trilogy. The Grigari "mistook Earth's intense sensor scans" for an attack, then "fired a warning shot" that they "didn't realize would overwhelm the planetary defenses". Result: EarthShatteringKaboom.
** According to Diane Duane's ''Franchise/StarTrek'' novels, the Vulcans were once invaded by Orion Pirates who "came in peace." Since then, the Romulans (which left Vulcan after that ... [[ItsALongStory long story]]) have been ''a bit'' wary of peaceful intentions, as Starfleet later found out.
* Creator/JohnRingo's ''Literature/LegacyOfTheAldenata'' starts out with friendly aliens contacting humanity. In a subversion, the contact was ''because'' of [[HumansAreWarriors humanity's aptitude for violence]], and the Galactics' complete lack of it even in the face of the [[HordeOfAlienLocusts Posleen]] [[CurbstompBattle steamrollering anything in their way]]. Although as the story unfolds, it turns out to be played rather straighter than it initially appears, as one faction of the 'friendly' aliens has a serious case of GoodIsNotNice at ''best''.
* The same is pretty much the case in Creator/FredSaberhagen's ''Literature/{{Berserker}}'' stories; the Carmpan, an inherently peaceful race unable to directly fight the titular killing machines, gives humanity just enough help to become expert Berserker-killers.
* A subversion in another Creator/JohnRingo work, ''[[Literature/TroyRising Live Free or Die]]'': The initial contact is peaceful, by a race that's only interested in trade with Earth. Contact with the Horvath is... not, and for rather less pleasant purposes than trade.
* ''Literature/{{Dreamcatcher}}'' by Creator/StephenKing involves an invasion by an alien species of telepathic mold (ItMakesSenseInContext). The mold sends out telepathic messages which includes the classic "We come in peace", but the '''big''' lie is "We are not infectious".
** Good thing the GeneralRipper in charge decided to attack them anyway, [[TheExtremistWasRight despite them not showing any signs of fiendish behaviour up to that point.]]
* Played with in ''Literature/HaloContactHarvest''. First contact between humanity and the Covenant happens between the human inhabitants of Harvest and a Covenant task force led by Jiralhanae ([[MeaningfulName a.k.a.]] [[ReportingNames Brutes]]). The Jiralhanae are making unreasonable demands during the negotiations, but that's not what starts the Human-Covenant War. Instead, it was a trigger-happy Covenant Grunt. Also, unbeknownst to either party, [[spoiler:the Covenant's High Prophets were already planning on wiping out humanity regardless of how negotiations went]].
* Played with in Harry Turtledove's short story "The Road Not Taken". When aliens land, humans send out peaceful processions to greet them, which are quickly massacred by the landing party. However, the humans also very reasonably have military units nearby, just in case. The twist is that, other than their space travel capabilities, the aliens are ''ridiculously'' [[InsufficientlyAdvancedAlien out of their league]], technologically ([[SchizoTech attacking with flintlock rifles and powder cannons]]). The invaders are killed or captured in minutes.
* The arrival of the [[ScaryDogmaticAliens Yuuzhan Vong]] in the ''Literature/NewJediOrder'' series is Type 2. The aims of the Vong are pretty clear, but {{the Quisling}}s in the Peace Brigade are convinced they can reach an accommodation with them. This isn't the case of course.
** FromACertainPointOfView, the Yuuzhan Vong ''do'' come in peace. The closest translation for "peace" in the Yuuzhan Vong language is "appropriate submission of the conquered to the conqueror."
* In the ''Literature/TheWarAgainstTheChtorr'' book ''A Day for Damnation'', [=McCarthy=] and Fletcher consider the possibility that the Chtorrans are peaceful but powerful aliens that humans keep provoking. They plan a peaceful contact with Chtorrans with [=McCarthy=] unarmed and naked. [[spoiler: It turns out they were right the first time. They all nearly get eaten alive.]]
* Throughout ''Literature/{{Refugees}}'', characters question the Benefactors' motivations.
* Played With in ''Literature/WeKnewTheyWereComing''. The aliens really ''are'' hostile conquerors, but humanity had no way of knowing that when we fired first. Basically all they had done was clear orbit of all debris and satellites (leaving the ISS) before settling into orbit themselves, and not answering radio calls.
* In the backstory of the ''Literature/KrisLongknife'' series, the humans and Iteeche first encountered each other when the Iteeche attacked outlying colonies without warning. After a bloody border conflict the two species agreed to ignore each other and established [[TheNeutralZone a demilitarized zone that neither was allowed to fly through]]. That's the official story on both sides anyway: [[spoiler:What ''really'' happened was that the attacks went in both directions, having been committed by ''Iteeche and human SpacePirates''. These pirates then lied to their respective governments when reaction forces moved in to defend the colonies; the two navies collided and [[PoorCommunicationKills lack of shared communications frequencies and unwillingness to negotiate]] did the rest. After figuring out some of what was really going on, Ray Longknife and Roth'sum'We'sum'Quin managed to make contact with each other and negotiate TheNeutralZone, and the two species went their separate ways, [[NotSoDifferent all the while with both their respective publics convinced that the other side had intended their extermination and they had survived by the skin of their teeth]].]]
* In the ''Literature/ConfederationOfValor'' series, the Others began attacking the Confederation centuries ago. The Confederation sent diplomats to point out that SpaceIsBig and there was plenty of room for both civilizations; the Others sent back the dead diplomats with a bomb. [[spoiler:Actually, the Others, who call themselves the Primacy, had the exact same experience with the Confederation. Both sides were being manipulated, and peace efforts sabotaged, by a HigherTechSpecies as a giant sociology experiment. Once this is discovered by protagonist Torin Kerr and other inmates of an alien POWCamp in book four, they bury the hatchet with the Primacy.]]

[[folder:Live-Action TV]]
* ''Series/DoctorWho'':
** ''New Who'' plays this one straight: TheMaster goes to Earth, creates a human identity for himself, and gets elected as Prime Minister. Then he calls in the Toclafane, who come to Earth under the pretense of sharing their technology in exchange for Earth's friendship. Moments after first contact, however, the Master and the Toclafane set their true agenda into motion: take over the world so they can build warships and conquer the rest of the universe. Earth humans are literally (in the Latin sense of the word) decimated.
** The Silurians have elements of Category 2, with the Doctor castigating UNIT for being trigger-happy. But the Silurians themselves are conflicted, with some of them wanting peace and others releasing a plague on London.
** The Creator/BigFinish audio drama "Blood of the Daleks" features a beleaguered human colony being contacted by "benevolent aliens". The clue's in the title. (And at the end [[spoiler:they make the same mistake with the Cybermen]].)
** [[Recap/DoctorWhoS28E12ArmyOfGhosts "Army of Ghosts"]] demonstrates a variation whereby the visitors are not aliens but [[spoiler:{{Killer Robot}}s called Cybermen]] from a ParallelUniverse, being deliberately brought to ours by the Torchwood institute. (In the first act of the episode, the [[spoiler:Cybermen]] take on a "ghostly" appearance and do not speak). During the period where the visitors are assumed to be friendly, humans call them "[[OurGhostsAreDifferent ghosts]]", and many even think they really are the silent spirits of their deceased loved ones. The Doctor says "No one's running, screaming, freaking out", to which Jackie responds "Why should we?" Correct answer: ''Because you aren't, which means they're probably dangerous''. There was a great line at the end of that episode.
--->'''Yvonne:''' They're invading the whole planet.\\
'''The Doctor:''' It's not an invasion, it's too late for that. It's a victory.
* Both variations are common in ''Series/TheOuterLimits1963'', ''Series/TheTwilightZone'' and similar anthology shows.
* ''Series/{{V 1983}}'' was about a hostile, sneaky, [[ScaryDogmaticAliens Nazi-like]] alien race using humanity's credulity against them. Originally conceived as a show about the presidency of a Father Coughlin like American fascist, but [[ScrewedByTheNetwork the network]] demanded Nazis [[RecycledINSPACE IN SPACE!]] It actually proves a clever tactic, since there aren't actually very many of the Visitors and while their tech is superior it isn't THAT superior, meaning they almost certainly would have been stomped in a direct invasion.
* The 2009 reboot ''Series/{{V 2009}}'' makes it the alien leader's catchphrase: "We are of peace, always." (Major spoiler: [[spoiler: No, they aren't]].)
* ''Series/StargateSG1'' is often an exception. The aliens they make first contact with are rarely evil, and it's even more rare for the protagonists to try to do them any harm. They're just incredibly unlucky. At least if you count all the non-Earthborn humans as aliens like the SGC does. Some of the real aliens fit the trope better.
** The Ori in the last several seasons fit rather well. They attempt to spread the religion of Origin throughout the Milky Way, having their priors say that it's enlightenment, the Ori are gods, and that they'd teach ascension. Really, they just want [[GodsNeedPrayerBadly the power your worship will give them]], and if you don't convert, they'll kill you and maybe your entire planet.
** The Aschen, after giving mankind a crapton of AppliedPhlebotinum, including a serum which doubles their lifespan, are discovered to be [[spoiler: sterilizing the human population, so that they will eventually die out, and the Aschen can take over the planet.]] They are of course found out, but too late, requiring a TimeTravel [[CosmicRetcon Retcon]].
*** SG-1 then make contact with the Aschen again in a later episode and nearly repeat the mistake, until they realize they come from that planet the OminousMessageFromTheFuture told them never to visit.
* Subverted quite nicely in ''Series/EarthFinalConflict''. When the show starts the aliens do have a great deal of influence, but many humans are still untrusting. More significantly, while the aliens do have a hidden agenda, it's not so much EVIL as a gambit driven by a desire to survive.
** Not even ONE gambit, but [[GambitPileup several]], which generally end up anything from failing to being near-cataclysms (having so many of them, often working at cross-purposes, getting in each other's way, or at the least diverting important resources from each other turns out ''not'' being a great idea. Go figure).
* Subverted by ''Series/ThirdRockFromTheSun''. The friendly alien protagonists live in constant [[TheyWouldCutYouUp fear of being experimented on]] by "primitive" Earth scientists and use this as the justification for their {{Masquerade}}. The subversion comes in how paranoid they are about this happening even though none of the human characters even ''suspect'' they're aliens. Well, except for that one psycho played by Kathy Bates, but it turns out she had a habit of killing innocent people she incorrectly suspected of being aliens.
* The main characters of ''Series/{{Roswell}}'' are just three (or, for a while, four) teenagers who only want to live in peace until they figure out a way to get home, but they live in constant - and justifiable, given certain events of the first season - fear of the government and other alien hunters.
* In the first episode of ''Series/{{ALF}}'', when authorities investigate the crash landing of ALF's ship, they make it clear to the Tanners that if an alien life form is found, it will be taken into custody to be experimented on.
* ''Series/StarTrekEnterprise'':
** Captain Archer of the NX-01 ''Enterprise'' sets forth on a mission of exploration and derides the need for powerful weapons, but three years of [[VillainOfTheWeek Close Encounters of the Worst Kind]] and the deaths of 27 crewmen in the Xindi conflict cause him to recommend that the NX-02 be better armed and have a squad of [[SpaceMarine MACO's]] as well.
** The prologue to "In a Mirror, Darkly" takes the [[CrowningMomentOfHeartwarming beautiful]] ''[[Film/StarTrekFirstContact First Contact]]'' scene where humanity meets the Vulcans, flips it inside-out and drops it squarely into Type 1 of this trope -- Zefram Cochrane blasts the Vulcans in the face with a shotgun and hijacks their ship. Pretty awesome, in a sadistic sort of way[[labelnote:*]]To be fair, this was the version of Cochrane who had [[Film/StarTrekFirstContact just narrowly escaped being assimilated by the Borg]]. He wasn't an irrational xenophobe; he ''knew damn well'' that there were terrible things out there, and even if these new guys ''weren't'' a threat - which he couldn't be sure of -- he was perfectly willing to kill them in order to get the technology that humanity needed to protect itself.[[/labelnote]].
* On ''Series/BabylonFive'', such an incident kicked off the pre-series Earth-Minbari War. [[spoiler:During the first contact between Earth and Minbari starships, the Minbari approach with gunports open, a cultural gesture of respect. The Earth captain overreacts -- the Minbari accidentally jam the Humans' jump drives with their scanners -- and assumes hostile intent. HilarityEnsues.]]
* ''Series/TheTwilightZone1959'':
** In the episode "To Serve Man" (based on the Creator/DamonKnight story of the same name), outwardly-benevolent aliens visit us and grant us all of their technological wonders, including indestructible force-domes that protect each nation from nuclear attack by any other nation. We accidentally get hold of their handbook, titled "ToServeMan". [[ImAHumanitarian Guess which kind of "Serve" they had in mind]]?
** The first version is explored in the lesser known episode "The Gift". An alien makes contact with a superstitious Mexican town and is killed out of fear. The villagers find he had a paper as a gift saying "Greetings to the people of Earth. We come in peace. We bring you this gift. The following formula is a vaccine against all forms of cancer...." the rest of the page burned away.
* Chris Elliott did a sketch on some show parodying the "all aliens are friendly" by hugging and promoting one trying to attack him.
* On ''Series/{{Hyperdrive}}'', this trope constitutes most of the Camden Lock's operating procedure for dealing with aliens. Henderson and Teal come in peace, York shoots to kill and either way it bites them in the arse.
* The ''Series/StarTrekTheNextGeneration'' played with this in an episode titled "First Contact", not to be confused with ''Film/StarTrekFirstContact''. Riker is captured monitoring a planet that's on the verge of becoming warp capable. While the planet's leader is a ReasonableAuthorityFigure, his head of security shoots himself with a phaser to frame Riker for murder, but screws it up. It's playing with both examples of this trope.
* [[Series/StarTrekTheOriginalSeries James Kirk]] didn't really say "We come in peace -- shoot to kill", but in "Spectre of the Gun" he told the Melkotians "We come in peace," drew and aimed his phaser and said "But we'll defend ourselves if necessary."
* In ''Series/StarTrekDiscovery'', the first part of the trope name is a BerserkButton for T'Kuvma, who believes that the Federation are liars, who claim to come in peace, while aiming to assimilate all cultures they come across, including the Klingons. To him and his followers, claiming to "come in peace", while seeking to undermine what it means to be a Klingon, is a bold-faced lie. He manages to rally most of the Great Houses under his banner, while chanting "Remain Klingon!" Michael Burnham is the only one who thinks that this approach to Klingons is wrong, having been told by her foster father Sarek that Vulcans have learned to open fire on Klingon ships at every encounter in order to initiate a dialog (the so-called "Vulcan hello"). She wants to do the same, against her captain's orders, not realizing that T'Kuvma intends to start a war no matter who fires first.

* A recurring line in [[http://en.wikipedia.org/wiki/The_Firm_(Star_Trekkin%27) "The Firm's]] [[AffectionateParody "Star Trekkin'"]], [[BeamMeUpScotty attributed to]] TheCaptain Kirk. This is, of course, the Trope Namer.
* "Star Invasion" by Music/{{Helloween}} has one such misunderstanding. An awful mess ensues.
* Music/PeterSchilling's "Zone 804" is about peaceful aliens visiting to fix our planet, but the world sees them as a threat and responds only with having missile silos open and standing by.

[[folder:Tabletop Games]]
* This is the BackStory to ''Necessary Evil''. A friendly alien race comes to ally with Earth's super heroes in their endless battle against another, warrior alien race. After a long battle with the enemy, the good aliens drive off the evil ones and all of the heroes gather up to throw a celebration in their honor. It turns out to be an [[spoiler:elaborate trap. The good aliens and the evil aliens are both on the same side, and fabricated the war in order to gather all of the super heroes in the same place at the same time. Following the extermination of the good supers, the aliens enslave humanity and rule with an iron fist leaving only the super-villains to fight for humanity.]]

[[folder:Video games]]
* ''VideoGame/FinalFantasyIV'''s Lunarians. The majority are peaceful, kept in stasis until the humans below have evolved far enough to accept the aliens' intergration onto their world. One Lunarian, however, rejected this plan and opted to invade ''now''. This plot was more or less recycled in ''VideoGame/FinalFantasyIX'', with a single-minded android in place of the rogue alien.
* ''VideoGame/FinalFantasyVII'''s Jenova. Originally thought to be a mummy from an ancient, magic-wielding civilization, it was later exposed as an alien who was entombed by said magic-users. Jenova's MO is to imitate someone's appearance and voice, then - using their absorbed memories - approach that person's friends and loved ones under the guise of the victim. Her spawn have this ability, too, so it's a good thing Jenova was stopped dead in her tracks before she could escape the artic.
* ''Franchise/MassEffect'':
** FirstContact with alien life for humans came in the form of the turians discovering human explorers activating inactive mass relays whenever they found them. Unbeknownst to the humans, this was a serious crime by galactic law... and to make it worse, they were colonizing inhabitable planets within turian space. What the turians saw was an unknown race of aggressive expansionists who wantonly ignored all the Citadel Conventions that they were sworn to protect, and being a highly militaristic society, opened fire without warning on the human forces. The humans in turn saw a bunch of aliens attacking their new colonies for no reason. Fortunately, the other Citadel species, particularly the diplomatic asari, quickly saw what was happening and stepped in with peace talks before it could explode into full-blown war. Indeed, the Council ordered the turians to pay reparations to the humans, saying that they should have contacted the humans and explained the situation before immediately shooting at them and occupying a colony world. Good thing, too, as if it had expanded into a real war, there's no telling who would have come out on top, and there would definitely have been billions of casualties on both sides. The salarians actually did some projections of what might have happened, and determined that, most likely, the humans and turians would have wiped each other out... and taken a quarter of the inhabited galaxy with them. The whole debacle became known to humanity as the First Contact War, while the turians call it the Relay 314 Incident.
** The Reapers also attempt to invoke this, by inviting planetary government leaders for "peace talks" (read: indoctrination), and otherwise come out guns blazing. Ironically, it takes a combined human/turian fleet (along with support from the asari, quarians, salarians, geth, and krogan) to even stand a ''chance'' at fighting the Reapers.
** When the kett first encountered the angara in ''VideoGame/MassEffectAndromeda'', the angara were still reeling from the Scourge cutting off so many of their colony worlds, resulting in the destruction of a large majority of their history. The kett gifted them with knowledge, resources, and the like, and when the angaran's guard was down, they suddenly began abducting and killing them.
* The Esmers in ''[[VideoGame/LittleBigAdventure Little Big Adventure 2: Twinsen's Odyssey]]''. Their catchphrase: "Greeting Twinsunian! We are your friends. We come in peace. Have trust in your friendship!" is so suspiciously harmless that it is really no surprise when they turn out to be not so nice after all. The fact that they fire guns at you from behind newspapers and even dress up as cacti and trash cans to shoot at you further exemplifies this.
** [[spoiler: It was later revealed that they're a pretty decent beings in a more modern and industrialized but diverse society in their home planet Zeelich. However their religion and prophecy are controlled by, as revealed near the end of the game, Funfrock, the BigBad of the first game.]]
* The {{backstory}} to ''X-COM: UFO Defense'' has humanity repeatedly trying to contact the alien invaders and being ignored. Although the aliens weren't really bad guys at that point (there were UFO sightings, but relatively few abductions), there wasn't much of a problem other than the diplomatic equivalent of getting the cold shoulder. Then the aliens attacked a city. Let's round up a posse and kick their alien asses!
** In addition, in both ''UFO Defense'' and ''Terror from the Deep'', the aliens will try to convince territorial governments of their good intentions. If they succeed, the government ceases funding X-COM and the aliens actually don't attack them any more. If ''all'' governments sign non-aggression pacts with the aliens, then the aliens ''summarily destroy humanity''. Whoops!
** The UsefulNotes/PlayStation version had this rendered as a cutscene of two world leaders in the UN building signing a treaty with the aliens, only for a group of aliens (led by a Sectoid with a SlasherSmile and two [[EliteMook Mutons]]) to come through the door and [[BoomHeadshot blast the head off one of them]].
** The most recent iteration of x-com, ''X-COM: Enemy Unknown'', is in all respects very similar to UFO Defense with a few minor changes. The aliens in addition to giving us the cold shoulder start abducting humans at complete random across the globe. Terrible as this is they seem willing to keep it at that until X-com operatives start killing their troops, shooting down their UFO's, and raiding their bases at which point they outright attack civilians (with no intent to abduct) with some of the most horrifying stuff you will ever see eviscerate a live human.
* ''VideoGame/GrandTheftAutoIV'': "Republican Space Rangers" mocks this trope to hell and back as part of the satire.
* The trope title is a criminal offence in ''VideoGame/{{Startopia}}'', which will occasionally show up on criminal peeps that enter your station.
* The Slylandro probes in ''VideoGame/StarControl II'' state peaceful intentions, but abruptly change their minds and attack regardless of conversation options. [[spoiler:Turns out [[HanlonsRazor the Slylandro just suck at programming]]; they dialed up the probes' self-replication ability too high, resulting in them dissecting the targeted ship for materials to make more probes.]]
* ''VideoGame/EscapeVelocity'': In the original and ''Override'', the aliens and Voinians did the overt Type 2. The ''Classic'' aliens wanted to kill us, while the Voinians wanted to enslave us. ''Nova's'' a little more complicated. First contact between the Polaris and [[StarfishAliens Wraith]] ended up as Type 1 when Polaran border patrol ships thought some young Wraith playfully buzzing them were attacking and killed them. [[spoiler:The Polaris storyline gives you the opportunity to get a peace treaty signed.]]
* In ''VideoGame/StarCraft'' first contact consisted of a Protoss fleet sterilizing a Terran colony whose inhabitants hadn't realized their world was infested with Zerg. There was some later peaceful cooperation between some Terran and Protoss factions, even Zerg for short periods of time.
** Probably explains why the Music/Level80EliteTaurenChieftain song [[http://www.youtube.com/watch?v=dUqG5gB8nbI Terran Up the Night]] includes the line "You come in peace, well, I come in war!"

[[folder:Web Comics]]
* In ''Webcomic/SluggyFreelance'', a horde of fleshreaving, soul-devouring, [[AlwaysChaoticEvil pure evil]] demons [[DemonicInvaders invade another dimension]], yet they become widely accepted (at least in America) thanks to propaganda portraying any resistance against them [[PoliticalCorrectnessGoneMad as anti-demon bigotry]]. [[http://www.sluggy.com/comics/archives/daily/20040912 This]] strip says it best.
* This is one of the two strategies of the invading Martians in ''Webcomic/IrregularWebcomic'', as explained in [[http://www.irregularwebcomic.net/2413.html this strip,]] and the strip annotation references this very page.

[[folder:Western Animation]]
* There was an episode of ''WesternAnimation/{{Thundercats}}'' that had Lion-o attack an innocent alien visitor, then out of embarrassment help the next alien he met, who turned out (of course) to be evil.
** This was also an example of UglyHeroGoodLookingVillain, as Lion-o fired on the first alien because he was ugly and spoke gruffly, while the second was elegant and cultured.
* The various ''Franchise/{{Transformers}}'' series have had both, at times: The fiendish Decepticons worming their way into humanity's places of power, and the heroic Autobots being hounded as invaders (often after the Decepticons reveal themselves).
* Parodied in the ''WesternAnimation/{{Futurama}}'' episode "[[Recap/FuturamaS3E19RoswellThatEndsWell Roswell That Ends Well]]", when [[UsefulNotes/HarryTruman Harry S Truman]] greets Zoidberg with "If you come in peace, surrender or be destroyed. If you're here to make war, we surrender."
* In the cartoon ''WesternAnimation/GarfieldAndFriends'', some aliens landed saying "we come in peace," and Garfield observed that any aliens who say that are actually evil invaders. His prediction was correct.
* In the ''WesternAnimation/SuperFriends'' episode, "Volcano," an alien ship crashes lands into an active volcano. Superman and Samurai come to render assistance, but the aliens are so paranoid that they are more determined to keep the superheroes away even while their ship is sinking into the magma. Meanwhile, the heroes rack their brains for a way to save the aliens before it's too late.
* In ''WesternAnimation/TheSimpsons'' episode "[[Recap/TheSimpsonsS8E10TheSpringfieldFiles The Springfield Files]]", the trope is parodied when an alien (which later turns out to be Mr. Burns, made to look like an alien [[ItMakesSenseInContext through various circumstances]]) greets the people of Springfield:
--> '''Alien (Burns):''' I bring you ''love!''
--> '''Lenny:''' It's bringing love! Don't let it get away!
--> '''Carl:''' Break its legs!
* REGIS in ''WesternAnimation/MegasXLR'' gives us these gems:
-->Do not panic, you will all die.
-->Surrender and I will destroy you peacefully.
* [[InvertedTrope Inverted]] in one old ''WesternAnimation/{{Gumby}}'' short. Long story short, Pokey needed to be rescued from a group of Native Americans, so Gumby and some pilgrims storm their camp and send the natives running with gunfire. Immediately thereafter, they claim that they "come in peace."
* Benevelon in ''WesternAnimation/Ben10Omniverse'' is a curious example of this trope. He says he's coming to bring peace, and he means it. However, [[ExactWords his idea of bringing peace to Earth is by wiping out the human race]].

[[folder:Real life]]
* [[http://en.wikipedia.org/wiki/Juan_Díaz_de_Solís Juan Díaz de Solís]] led the Spanish expedition to the Americas that discovered the Río de la Plata. He saw natives at the oriental coast (modern Uruguay) and landed for a first contact. He was killed on sight by a wave of arrows. Only a few survivors managed to return to the ship and go back to Europe.
* To this day the [[http://en.wikipedia.org/wiki/Sentinelese_people North Sentinel islanders]] resist any attempts at meaningful first contact with lethal force.