An extremely common plot in fiction is commandeering enemy equipment and turning it against its former owner as soon as possible, often with the thief in command of the hardware. The commandeered materiel will often then remain in continuous service rather than being reverse engineered and mass produced.

This trope is ubiquitous in works of naval fiction that are set in the age of WoodenShipsAndIronMen. This is because sailors were awarded prize money for capturing enemy ships. Captured enemy ships would often be incorporated into the captor's own navy (often under their original names, as it was considered bad luck to change the name. HMS ''Guerriere'' is a good example). See TheOtherWiki [[http://en.wikipedia.org/wiki/Prize_money for more information]]. Because SpaceIsAnOcean, science fiction works will sometimes use the same concept with spaceships.

SuperTrope to GrandTheftPrototype, which is the SuperPrototype or otherwise "super weapon-y" version of this trope. See also HoistByHisOwnPetard and DeathByIrony.
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!!!Examples

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[[folder:Film]]
* Chewbacca and a pair of Ewoks famously commandeer an AT-ST in ''Film/ReturnOfTheJedi''
* In ''Film/CaptainAmericaTheFirstAvenger'', HYDRA's advanced weapons and technology are turned against them by America [=POWs=]. The opening seconds of the breakout is a ZergRush, but with every soldier taken down, the escapees get access to weaponry and vehicles.
* A recoilless gun mounted on a militia technical is taken over by Deltas and turned against the on-site commander in ''Film/BlackHawkDown''.
* Done a few times with ships in ''PiratesOfTheCaribbean'', notably the Navy ship in the first film. These ships are not stolen. [[InsistentTerminology They are commandeered.]] It's a nautical term.
* In ''Film/{{Firefox}}'', Clint Eastwood does a GrandTheftPrototype of one of the two of the titular Soviet supersonic fighters and uses it to shoot down the one sent after him.
* In ''Film/{{U571}}'', while the initial plan is to simply board the titular sub and scuttle it after capturing its Enigma machine, the loss of their own submarine forces the heroes to take control of U-571 and use it in battle against the Germans.
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[[folder:Literature]]
* ''Literature/HoratioHornblower'', the ''Literature/AubreyMaturin'' series, Alexander Kent's ''Richard Bolitho'' and other similar book series depict such captures on average at least once a book, if not more. It would be impractical to list every incident.
* In the ''Literature/HonorHarrington'' series, most space battles result in the complete destruction of enemy ships, however on several occasions, enemy ships are captured and then used against the enemy.
** Earl White Haven gave Grayson the Havenite ships he captured in ''The Short Victorious War,'' boosting the Grayson Space Navy while they built up shipyards for more capable designs.
** The ships Honor captured at Hades for the mass jail break in ''In Enemy Hands'' were first turned against the Havenite force coming to recapture the system, and then later were made a group that answered only to the Protector of Grayson (called "[[PraetorianGuard The Protector's Own]]"), to avoid trouble with Grayson laws limiting the armed forces legally available to Steadholders (like Honor).
* In ''Literature/{{RCN}}'' series, the enemy ships are often captured and used against them.
* In Sven Hassel's fictions of WW 2, the lads are often sent on suicide missions or are otherwise caught behind Russian lines and need to get home. This invariably ends up in escapades in Soviet kit they do not know how to use and have to figure out on the spot.
* On ''Literature/{{Gor}}'' naval fights, being of the WoodenShipsAndIronMen type, often use this. Specifically, in ''Renegades of Gor'' the river town of Ar's Station use this to supplement their navy. Ar is a land superpower but doesn't have much of a navy, so they fill their holds with infantrymen and swarm their enemy's ships when they get boarded, capturing the ship and then using it against the enemy's other vessels.
* In ''Literature/{{Biggles}} Goes To War'', Biggles and his friends are hired to help a small {{Ruritania}}n state develop its air force. They don't scruple to obtain enemy aircraft by trickery and press them into service.
* In the Literature/LiadenUniverse novel ''Plan B'', the turning point in the attempted invasion comes when the defenders steal three planes from the invaders' own airfield and use them against the invading troops.
* This is {{discussed}} in Literature/TheWarOfTheWorlds, when a soldier fancifully suggests doing this with the Martian tripods.
* In ''[[XWingSeries Wraith Squadron]]'', the eponymous fighter squadron steals the corvette ''Night Caller'' from Warlord Zsinj's fleet by [[ASimplePlan the simple expedient]] of a makeshift boarding pod disguised as debris. They take it so rapidly that the ship's superiors have no idea it was captured, allowing them to use it for TheInfiltration. Afterwards, it remains in New Republic service, presumably in a less prominent role (and maybe with a less [[NamesToRunAwayFromReallyFast obviously evil name]]). In fact, it's mentioned that the New Republic, and the Rebel Alliance before it to a greater extent, get a lot of their ships this way: either they're boarded and seized, or their crews defect ''en masse'', or a third party gets their hands on it and simply sells it to them.
* Alexander Kent's ''His Majesty's U-Boat'', set in WWII, is a fictional example of a WWII-era vessel being used against its former owners -- actual captured U-boats never went on patrol under Allied colors.
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[[folder:Live-Action TV]]
* In ''Series/SpaceAboveAndBeyond'', the Earth military captured an alien Bomber. They had to spend some time learning how to operate it before they could use it against the Chigs, though.
* Happened frequently in ''Series/StargateSG1'' with the team capturing Goa'uld fighters, or other ships and using them back against the villain of the week. In early seasons the vehicles were [[StatusQuoIsGod often destroyed in the ensuing battle]] however by later seasons they'd were reliably keeping their prizes long enough to start reverse engineering them.
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[[folder:Real Life]]
* Happened during WWII to a great extent. The Germans used a great many captured tanks -- French ones were used as training, guard and anti-partisan units, Czech ones formed standard combat forces. In the Desert campaign, it was not unknown for both the Axis and Allied sides to scrounge and use each other's captured vehicles so long as the ammo and spares lasted, with Germans operating Shermans and British Tigers. The Luftwaffe had a squadron of captured aircraft it used for spy missions, and the Kriegsmarine operated several captured submarines (for example UB-1, the former HMS ''Seal''). The Japanese used captured M3 Stuart tanks. A number of battles were initiated specifically to prevent the enemy from taking advantage of captured vehicles, most significantly the British bombardment of Mers-el-Kebir which sank three French battleships and killed a thousand French sailors.
* The Germans during WWI operated captured British tanks in addition to their own (since their own design was more cumbersome and took a long time to build).
* A standard tactic of LaResistance in pretty much any war ever.
* Ironically, the first fighter planes of the nascent Israeli Air Force were four Nazi-designed Messerschmitt BF 109s. Subverted since they were license-built postwar by Czechoslovakia, and due to a different engine were poor knock-offs of the original marks of the aircraft. Still it must have been a bit satisfying. In a further irony, they were flown against Egyptian Spitfires -- when most of their pilots had been flying British Spitfires against German Messerschmitts a few years before. The Israeli army also used thousands of Nazi rifles (which in some cases, still bore swastikas, though these were usually obliterated by stamping).
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[[folder:Tabletop Games]]
* The strategy game of ''TabletopGame/{{Shogi}}'' (aka "Japanese Chess") allows you to bring back captured pieces on your side as early as your next turn. This is said to be inspired by the actions of mercenaries who would switch sides when captured, rather than be executed.
** Orks in Warhammer 40K often loot enemy vehicles, usually painting them red, overclocking the engines, slapping on armor and adding extra weapons. Depending on edition they can be used in the game, with a list of rules to show their unreliability.
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[[folder:Video Games]]
* One mission in ''Videogame/MechCommander'' has you escorting an APC carrying an elite pilot to a powered-down Masakari assault mech, so the elite pilot can commandeer it and use it against the Smoke Jaguars.
* ''VideoGame/StarcraftII'': Raynor's Raiders pull a GrandTheftPrototype on the [[HumongousMecha Odin]], preventing its use by the Dominion. However, this is actually all part of a plan to get the Odin into the heart of the Dominion with a Raider pilot inside. Also, the chief engineer actually reverse-engineers the Odin in order to produce the Thor, a slightly smaller, less powerful, but mass-produceable version.
* One mission in ''VideoGame/{{Freespace}}'' required the player to capture a [[StarfishAlien Shivan]] fighter, and in the next mission use it for reconnaissance in an enemy held system.
* Several missions in ''VideoGame/WingCommander IV'' centered on capturing Confed weaponry and equipment. By the end of the game, it is possible for the Border Worlds Union to have captured several weapons prototypes, two squadrons of advanced starfighters, and two carriers.
* The BonusBoss of ''VideoGame/MarioAndLuigiDreamTeam'' is [[spoiler:Bowser Jr, complete with his mini-Koopa Clown Car. After a few turns, he'll get out of it, at which point you can jump into it and chase him down while throwing various objects at him.]]
* Some time between the end of ''VideoGame/MassEffect2'' and ''VideoGame/MassEffect3'', [[TheHero Commander Shepard]] surrenders himself to the Systems Alliance and turns over the ''[[CoolStarship Normandy SR2]]'', which had been placed under his command while he [[EnemyMine was working with Cerberus]]. By the time the third game begins, the ''Normandy'' has nearly completed her refit process to bring her in line with Alliance standards (and to repaint her [[ColorCodedForYourConvenience in Alliance Navy colors]].) A sidequest in ''[=ME3=]'' also results in the capture of a squadron of Cerberus fighters, which are pressed into Alliance service.
** During gameplay in ''3'', you can hijack Cerberus Atlas mechs by killing the pilot, although it's difficult and they often fall apart shortly after you do so. The one time you're ''guaranteed'' to have one to play with, you don't have the opportunity to salvage it because the area is lost and you have to run away, but ''damn'' is it fun to use the rocket launcher on clusters of Cerberus troops.
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