->If an advisor says to me "My liege, he is but one man. What can one man possibly do?", I will reply "This," and kill the advisor.
--> -- '''Number 46 on the EvilOverlordList.'''

In fiction ConservationOfNinjutsu is powerful beyond compare. One ninja, or frankly any humanoid, will have no problem taking out an entire army. Unfortunately for the army's leader, they're not GenreSavvy. Of course the only thing they can think, and thus shout, when seeing the carnage laid out is, "It's just one man!" or, "What can one man do?"

All in all this tends to be a StockPhrase used whenever a OneManArmy appears, or when the battle becomes OneRiotOneRanger. However this applies to any time a character asks what one person can do, whether it be against his army of Mooks or just his own superior strength. See also UnderestimatingBadassery and WeDoTheImpossible. Or perhaps ''TemptingFate''.

Not to be confused with TheOneGuy.

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!!Examples:

[[foldercontrol]]

[[folder: Anime & Manga ]]

* Very common in ''OnePiece'', especially during Enies Lobby.
** The most notable instance is when [[spoiler:Luffy knocks out ''50,000 fishmen'' with a '''glare'''. A DeathGlare powered by {{awesomeness|IsAForce}}, but still-a ''glare''.]]
* At the conclusion of the Wave Mission arc of ''Manga/{{Naruto}}'' Zabuza's arms are rendered useless and he ends up attacking an army of mercenaries with just a kunai held between his teeth. A mercenary in the front line mockingly asks what one badly-injured shinobi can do against their numbers... right before Zabuza ventilates his chest and [[FoeTossingCharge starts carving a path to Gato]].
** Near the end of the Invasion of Konoha arc in the anime, around 20 Sand Ninjas surround Hiashi Hyuga and remark that he's just one man. Hiashi then defeats them all with a very large Rotation jutsu.
** Repeated with the [[spoiler: Tobi/Obito arc after Kakashi kills Rin]]. Dead chunin and jonin are soon SMEARED on the battlefield.
* In Anime/CodeGeass, the Lancelot knightmare frame and its pilot Suzaku goes under this trope multiple times.
* Turns up in ''DragonBall'', particularly during the Red Ribbon saga, when General Blue is hesitant to attack Goku and company.
-->'''Soldier:''' B-b-but it's just three kids!
-->'''Blue:''' Just '''one''' of those kids wiped out both Silver Corps and White Corps! Now I've learned that Squad B was pulverized by the old man and the woman! And they didn't even have to unleash the turtle!
[[/folder]]

[[folder: Comics ]]

* GrantMorrison's ''[[JusticeLeagueOfAmerica JLA]]''. The White Martians have captured the entire League ... [[Awesome/JusticeLeagueOfAmerica almost]].
-->'''Protex''': ''Batman! '''Batman!''' He's only a '''man!'''''
-->(Close up of the captive Superman. Smiling. You can just imagine the thought balloon above Clark's head going, ''"[[InUniverseCatharsis I'm going to enjoy watching Bruce screw with you far, far more than I really should.]]"'' )
** Later:
--->'''Protex''': Tronix! Fluxus! What's ''happening'' there? Zenturian! He's ''only one man!''
--->'''Superman''':The most ... uh ... dangerous man on Earth.

[[/folder]]

[[folder: Film ]]

* ''TheMaskOfZorro'' (1998)
-->'''Captain Harrison Love''': After all, it's only one man...
-->'''Don Rafael''': It isn't just one man, damn it. It's Zorro!
* Batman (who should have learned from all the people who underestimated him) gives this line in ''Film/TheDarkKnight'':
-->[[SelfDemonstrating/TheJoker One man]] or the entire mob? [[TemptingFate He can wait.]]
* An InvokedTrope in the comedy ''Film/{{Water 1985}}''. Sir Malcolm Leveridge is having to explain to the Right Honourable MargaretThatcher how he let an American company get the sole rights to Cascara's mineral water. The IronLady decides that the solution is to secretly back a revolution that will nationalise the industry in exchange for granting the Brits the bottling rights.
-->'''PM:''' I have learnt that there is a subversive element on the island, one Delgado Fitzhugh.
-->'''Sir Malcolm:''' Oh, just one person...
-->'''PM:''' There was only one Ghandi once. One anorexic little looney in a loincloth and we lost a whole subcontinent!
* In ''TheMatrix'':
-->'''Lieutenant:''' I think we can handle one little girl. I sent two units, they're bringing her down now.
-->'''Agent Smith:''' No, lieutenant, your men are already dead.

[[/folder]]

[[folder: Live-Action TV ]]

* ''TheSixMillionDollarMan'' had this as almost a stock phrase on many episodes. In one episode the same bad guy had a sequence of schemes ruined by Steve Austin, to the point that at the end, he gets a call from some mooks: "What? ONE MAN?... This has a depressingly familiar ring to it."

[[/folder]]

[[folder: Real Life ]]

* A subversion took place in the lead up to WW-I, when pretty much everyone knew that war was just a matter of time. The commander of the British Staff College, Brigadier General Henry Wilson, was talking to his counterpart in the French Ecole Supérieure de Guerre, General Ferdinand Foch:
--> '''Wilson''': "What is the smallest British military force that would be of any practical use to you?"
--> '''Foch''': "A single British soldier--and we will see to it that he is killed."

[[/folder]]

[[folder: Video Games ]]

* ''VideoGame/BatmanArkhamAsylum''
-->'''The Joker''': Come on boys! He's just one man! One man dressed like a lunatic and armed to the teeth.
* Breen says this about Gordon Freeman in ''VideoGame/HalfLife2'':
-->'''Breen''': The man you have consistently failed to slow, let alone capture, is by all standards simply that--an ordinary man. How can you have failed to apprehend him?
** Breen is commenting not only on Gordon Freeman being a OneManArmy, but also on him being a BadassBystander, "not an agent provocateur or highly trained assassin".
** The bullet-proof hazmat suit Gordon's wearing does help, though.
* When Desmond claims this about himself in ''VideoGame/AssassinsCreedII'', Lucy replies with: "Sometimes that's all you need."
* [[BigBad Nicole Horne]] describes the titular character of ''VideoGame/MaxPayne'' this way in the first game:
-->"What do you mean, 'he's unstoppable'? You are superior to him in every way that counts. You are better trained, better equipped, and you outnumber him at least twenty-to-one. [[PunctuatedForEmphasis Do. Your. Job.]]"
* Commander Lockhart says this about Alcatraz in ''VideoGame/{{Crysis}} 2''.
* Becomes ArcWords in VideoGame/ModernWarfare 3. Price and Makarov repeat endlessly it against each other.
* You can pick this as a dialogue option early on in ''VideoGame/TheGodfather 2'' about the Cuban rebels. Predictably enough, shortly afterwards El Presidente announces his abdication.
* Repeatedly shouted in the ''[[VideoGame/FirstEncounterAssaultRecon FEAR]]'' games by assorted human villains as the Point Man and Michael Beckett tear through their troops. Norton Mapes comments on it in the first game while you're blasting through the ATC troops in the Vault ("Come on, he's just one guy? [[SurroundedByIdiots What good are you jackoffs?]]") and Colonel Vanek berates his men repeatedly while fighting through the labs under Wade Elementary, before finallya dmitting to Beckett's OneManArmy status. The Phase Commanders and other ATC officers in ''FEAR 3'' are GenreSavvy enough to understand how dangerous the Point Man is, and instead of berating them for being overwhelmed, they just order their men to stay in position [[BadBoss under pain of dismemberment.]]
* In ''VideoGame/KidIcarusUprising'', towards the end of Pit's rampage through a major installation for [[spoiler:Viridi]]'s army, she shouts: "Fight ''harder'', children! He's just ''one little angel!''"
* In ''VideoGame/MarkOfTheNinja'', when his lieutenant expresses concern about the player character killing dozens of his men, BigBad Karajan dismissively replies : "He is just one man."
* Frequently said by the [[{{Mooks}} Imperial soldiers]] in ''Franchise/TheElderScrolls Adventures: Redguard'', as the player character is fencing his way through dozens of them.
* Said almost [[GenderInvertedTrope ad verbatim]] in a dialogue of the {{Mooks}} you kill in a skirmish in Videogame/TombRaider2013.
--> ''Lara is [[MookHorrorShow gunning down every mook in the area]]''
-->'''[[GenreBlind Mook 1]]:''' She's [[JustOneMan just one girl]]!
-->'''[[GenreSavvy Mook 2]]:''' [[LampshadeHanging That]] ''[[LampshadeHanging one girl]]'' [[LampshadeHanging is]] ''[[LampShadeHanging kicking our asses!]]''
* In ''VideoGame/MassEffect2'', mercenary leader Jedore uses something to this effect as [[CurbStompBattle Shepard and his/her squad are slaughtering their way through her men]].
-->'''Jedore:''' There are ''three'' of them. ''THREE!'' Anything can be killed if you'd just do your damn jobs.

[[/folder]]

[[folder: Web Original ]]

* Number 46 on the EvilOverlordList
-->If an advisor says to me "My liege, he is but one man. What can one man possibly do?", I will reply "This," and kill the advisor.

[[/folder]]

[[folder: Webcomics ]]

* ''Webcomic/TheAdventuresOfDrMcNinja'': A plot point in [[http://drmcninja.com/archives/comic/17p70 One Man Army]].

[[/folder]]

[[folder: Western Animation ]]

* ''SamuraiJack'' episode "Jack and the Three Blind Archers"
-->'''General''': There are only three archers, yet they decimated my whole army. You are just one man. Do the math.
** The general was trying to discourage Jack. If he actually ''had'' done the math, he would have realized that the samurai's victory over the archers was assured.
* {{Filmation}}'s 1960's ''JusticeLeagueOfAmerica'', episode "Target Earth". While Green Lantern is smashing an invading space fleet, the fleet's commander says "Fools! He is just one man! Destroy him!"

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