A trilogy of AlternateHistory novels by John Birmingham about a Multinational Task Force from 2021 sent to oust an Indonesian Islamofascist movement getting sent by NegativeSpaceWedgie to 1942, just off the coast of Midway, where the bulk of the fleet accidentally ends up in the company of Admiral Ray Spruance's task force. A massive naval battle breaks out when Spruance's task force sees one Japanese ship accompanying the fleet, believing them all to be Imperial Japanese, but the fighting is eventually halted and the future fleet is brought to anchor in Pearl Harbor where the Up-timers explain themselves to various contemporary military and government officials. Culture shock ensues and the war finds itself irrevocably changed.

Meanwhile, small contingents of the fleet unfortunately find themselves in German, Japanese, and Soviet hands, and all parties go to work gearing up and changing their battle plans based on their new knowledge of the future.

!!Tropes include:
* AffablyEvil: Otto Skorzeny. [[BoisterousBruiser Big, boisterous man]] who likes boasting and roaring a lot. Scares Brasch to death with his brand of friendliness (which mostly consists of boasting and roaring) and even banters with [[spoiler:the Prince during a failed assassination attempt on Churchill.]]
* AncientConspiracy: Admiral Kolhammer and the other uptimers more or less start one, the Quiet Room, intending to "correct" history in the post-war world
* ArmorIsUseless: For the German and Japanese warships targeted by 21st century weaponry. [[spoiler: Tirpitz almost looks as if it's survived a hypersonic missile. It breaks up afterward though]]. Inverted in the case of the [[AppliedPhlebotinum reactive-matrix]] body armor of the Task Force--it saves plenty of lives from Axis bullets, unless they're hit in the face or throat, which is rare.
* AssholeVictim: J. Edgar Hoover. He [[spoiler:eventually commits suicide.]]
* BlackComedyRape: One of the temps, [[TheMole a fence for the mafia]], comes across a tablet with an extremely stupid gangster rap song called "Rape the Bitch Now". His bemused, enraged, and racist reaction is darkly humorous.
** An SAS member shoots a Japanese officer in the act (literally with his pants down) during an operation to save an imprisoned Australian town.
* BloodKnight: General Patton and many of the more extreme Japanese characters.
* ButtMonkey: J. Edgar Hoover, director of the FBI. [[{{Jerkass}} He deserves it.]]
* CantKillYouStillNeedYou: The reason the ''Havoc'' spares the Japanese Ohka carrier.
* ColonelBadass: Colonel [[spoiler:(later Brigadier General)]] J. "Lonesome" Jones.
** Although not a Colonel, or even in the Army or Marines, Admiral Phillip J. Kolhammer is no pushover either.
* CoolShip: All of the future ships are one of these, but standing out are the ''USS Hillary Clinton'' or "Big Hill" and the stealth ship ''HMS Trident''. The Australian submarine HMAS ''Havoc'' sinks a large chunk of the Japanese fleet in the first novel and finishes the job by the end of the third, all without being detected.
* CurbStompBattle: Whenever the 21st century task force decides to take off the gloves and goes on a full-scale offensive against the past forces--notable examples include the first book's assault on the Japanese-held Philippines, the counteroffensive in Australia, most of the naval combat, and the bombing after D-Day that utterly destroys twelve of Germany's best armored divisions.
** The Japanese also get this during the Battle of Okhotsk, where the kamikaze squadrons (using the new rocket-powered Ohkas) completely obliterate the newly-built Soviet Pacific fleet.
* CutHimselfShaving: After capturing Jisaku Hidaka, who's responsible for killing nearly 90% of the population of Hawaii, Kolhammer and Jones discuss what to do about him. Both really want to Sanction 5 him (a truly monstrous way of execution uniquely designed for a person), but Kolhammer convinces Jones to hand him over to the 'temps to stand trial. They do, however, have a female marine Sanction 3 him (a brutal beat-down) before giving him to Spruance. Later, Spruance asks about Hidaka's injuries. Kolhammer calmly says that Hidaka fell. Jones adds that he fell a lot. Naturally, Spruance is unconvinced but lets it slide. When Jones asks why Kolhammer lied, Kolhammer points out that Hidaka did fall a lot... as he was being beaten. Had Spruance directly asked him if Hidaka was sanctioned, then Kolhammer would tell him the truth, but Sprunace didn't want to know the answer. Oh, and Hidaka himself said the same thing when asked, embarassed at his dishonorable capture (he was [[ADateWithRosiePalms taken captive while masturbating]]) and a beatdown by a woman.
* DefectorFromDecadence: Colonel/Major General Paul Brasch is horrified to learn about the Holocaust when analyzing history documents aboard one of the captured future vessels, especially since his son has a cleft palate and Downs' Syndrome, and will be an easy target for the T4 program. his child and wife escape thanks to an allied spy's effort. In response, he sabotages much of Germany's efforts to build new weapons based on the future tech.
* DeliberateValuesDissonance: The cause of a lot of tension between the racially and gender-egalitarian 2021 military and their 1940's counterparts. For starters, a fight breaks out on board a future ship and contemporary ship that ended up fused together via NegativeSpaceWedgie when, in the aftermath of a firefight, a female medic slaps one of the contemporary crewmembers when he indirectly asks for blood that doesn't come from a non-white person (a disproportionate number of the future ship's crew are either black or Chinese-American).
* DroppedABridgeOnHim: Almost everyone who dies does so suddenly and anti-climactically - if not off screen.
** [[spoiler:Otto Skorzeny is an especially notable one--Prince Harry off-handedly mentions strangling him to death in one sentence near the end of Final Impact.]]
* EthicalSlut: Julia Duffy is one in ''Final Impact'' after [[spoiler:breaking up with Dan Black, who later dies in a plane crash]]. Of course, not every guy is happy about her no-attachment rule. Also subverted when she sleeps with [[spoiler:John F. Kennedy while still officially married to Dan Black]].
* FrenchJerk: Subverted ''and'' played straight--the captured French missile frigate puts up a major resistance against the Nazis, wiping data and sabotaging what they can get their hands on, and all of them but four die for it--and the one actively collaborating is a racist, ultranationalist, insubordinate, sloppy disgrace of a sailor who wants to avert America's rise to power, [[InsaneTrollLogic blaming them for the Islamic riots and terrorist attacks in France]]. The other two are implied to be neo-Nazis. The last sailor says he's getting revenge for his sister, who was raped and murdered by two US Marines, [[spoiler:except that's a lie. His sister's alive and married to J. Lonesome Jones. He sabotages almost the rest of the missiles for the strike on Hawai'i, but fails to get the last few and blows the racist's head off before Hidaka guns him down.]]
* GeneralFailure: Hitler is in top form here as per real life. It's not that everything he touches turns to shit, but he's playing [[ArmchairMilitary Armchair General]] and tends to work off of bad hunches and incorrect assumptions.
** Thanks to future data, he has also eliminated many capable commanders, including Rommel.
* GiantWallOfWateryDoom: The USS ''Amanda L Garrett'' gets sunk by a huge wave in the Southern Ocean shortly after the Transition, while the crew is still knocked out by the effects.
* GoodIsNotNice: The doctrine of the 21st century force has been honed by years of wars against terrorists and rogue states into one of complete and utter pragmatism, and their operating rules allow torture and call for summary executions of war criminals. It's enough to make Himmler think "and they call us the war criminals" and to get an occasional WhatTheHellHero from their allies.
* [[NamesTheSame Name's Almost The Same]]: The Captain of a new experimental stealth ship named after a major WWII turning point is a black person with the name of "Da____ Anderson." Are we talking about Captain Daytona Anderson of the ''USS Leyte Gulf'' or [[Franchise/MassEffect Captain David Anderson of the ''SSV Normandy?'']]
* HistoricalHeroUpgrade: An alternate future version of Prince Harry who travels back in time to a point where his [[UsefulNotes/HMTheQueen grandmother]] is a teenager. This Harry is extremely mature and excels in leadership.
* HistoricalInJoke[=/=]AllohistoricalAllusion: The 2021 fleet's flagship is the fusion-powered supercarrier USS ''Hillary Clinton'', whose "murdered namesake" (assassinated) was "America's fiercest wartime President".
* HopeSpot: The Germans (and the Japanese) keep on believing they'll be getting their atomic bomb any time and that they just have to hold out a little longer. [[spoiler:It doesn't happen.]]
* HotScoop: Julia.
* InsaneTrollLogic: Hoover resorts to more and more of this as his standing erodes away, as does the FrenchJerk who helps the Japanese [[spoiler:attack Hawai'i]]. The latter reasons that America's politicking and crusading against Muslims flooded France with ultraconservative jihadi in retaliation, never mind that France has had a long, long history of abusing muslims themselves. He is stated to be wrong as ''hell''.
* ItsRainingMen: The German Fallschirmjager and a new airborne SS unit take part in Operation Sea Dragon as paratroopers and glider troops. It doesn't end well for them. Later, the Allies subvert this trope by launching a major airborne offensive in France--with helicopters, like a modern army.
* {{Jerkass}}: One of the racist privates from the first novel, and the Detective.
** JerkWithAHeartOfGold: The former softens up, and the latter [[spoiler:attempts to defend Hawai'i during the invasion.]]
* KarmicDeath: Heinrich Himmler remembers the importance of the T4 Program meant for the extermination of the physically and mentally disabled when he [[spoiler: smothers a vegetative Hitler with a pillow.]]
* LaResistance: The French Resistance helps out Prince Harry during [[spoiler:the rescue of Paul Brasch]]. A few of the Russian uptimers also try get one going against the Soviet Union in the second book, but [[WhatHappenedToTheMouse no word on its progress in Book 3]].
* TheLadette: Julia Duffy and many of the other 21st century women come across like this to the 'temps. Even Julia comments on it, thinking she must look like a "bull dyke from Hell" to their eyes.
* LadyOfWar: Captain Karen Halabi and Julia.
* LeftHanging: The author has abandoned the series after three books, leaving a lot of plot points unresolved. It's not clear if he will ever return to it.
* LoadsAndLoadsOfCharacters
* LudicrousGibs: Anyone hit with a caseless ceramic round is dead, even if it's a non-vital area. The round is designed to burst into sharp pieces upon contact with flesh, showering the vicinity with small red pieces of what used to be a person. Also results in many cases of YourHeadAsplode.
* MookHorrorShow: When the Japanese get [[ZergRush Tank Rushed]] in Australia or the Germans get bombed in oblivion in France, or when the Soviet troops try to speed their way past German nerve gas.
* NotSoDifferent: Quite a few 'temps comment on the field executions of Japanese personnel and burying procedures mirroring the Japanese's own methods.
** There is the subtle difference that under their rules of engagement, the uptimers are required to thoroughly document evidence of war crimes before summarily executing the criminals, and if a review of that evidence were to show that execution was unjustified, they would theoretically be executed themselves.
* NukeEm: [[spoiler: Final Impact ends with Lodz and Tokyo nuked by the Russians and Berlin by the Americans.]]
* OhCrap: The reaction of both the Allies and the Axis when [[spoiler: the Soviets come back into the war with a MASSIVE arsenal.]]
* PoliticallyCorrectHistory: ...No.
* PortalCut: The HMS ''Fearless'' is at the very edge of the expanded wormhole and gets cut in half by the Transition. Its reactor blows up a few minutes later when all that seawater rushes in.
* RapeAsDrama: Any time the Imperial Japanese and prisoners get mixed up.
* RetGone: What happens to the ship that caused the accident--it's simply... wiped out of both realities.
* RoyalsWhoActuallyDoSomething: [[http://en.wikipedia.org/wiki/Prince_Harry_of_Wales Prince Harry]] has re-joined the military (he served in Afghanistan in 2001) in the [=2020s=] as per King William's (his brother) instructions. After traveling to the [=1940s=], he personally starts the SAS 7 years earlier than in our history and trains all the commandos using modern (21st century) tactics. At the end of the trilogy, he off-handedly mentions to have [[spoiler:strangled Otto Skorzeny]].
* SchizoTech: A major result of the Transition. World War II tech, tech that was obsolete in World War II but still used, "napkinwaffe" actually being brought into service, upgraded World War II tech, tech straight from the 50s or 60s being built ahead of time, tech straight out of the [[TwentyMinutesIntoTheFuture 2020s]], and ad hoc mixtures of all of the above all clash in the same war.
** Part of that has to do with the 'temp generals fighting tooth and nail against any "modernization", including making assault rifles standard-issue.
* ShellShockedVeteran: Julia Duffy, who's only a war correspondent but handles herself in combat to the point of scaring some contemporary soldiers.
* ShoutOut:
** One of the characters is mentioned to hail from [[Literature/SixteenThirtyTwo Grantville, West Virginia]]. One of FDR's Secret Service bodyguards is even named Agent Flint.
** Captain Creator/MikeJudge
** Turtletaub's named after HarryTurtledove's former nomme de plume. The first mention of him is followed by a sarcastic remark about [[WorldWar an invasion of lizard aliens.]]
** There's one part where the president would no longer be surprised if [[Literature/TheDraka a bunch of African Super Nazis rose to power]] or [[{{Worldwar}} if dinosaurs from outer space began attacking.]]
** Stalin to Beria in book 3: [[{{Seinfeld}} "No soup for you"]].
** Two of the French characters mentioned are called [[ComicBook/{{Asterix}} Goscinny and Uderzo.]]
** The 21st century Royal Navy nickname for the [[MoreDakka Metal Storm]] defense pods is "[[Series/DoctorWho Daleks]]". Captain Halabi muses that the nickname never really caught on in the US.
*** TruthInTelevision: The Phalanx, a predecessor to the fictional Metal Storm, is indeed referred to this way by British servicemen. American Navy instead refers to similar systems as [[Franchise/StarWars R2-D2s]].
* SuicideAttack: The Japanese, as in our timeline, go heavy on the kamikaze aircraft and are also mentioned as using suicide submarines against ships. However, thanks to the arrival of future technology, they are able to perfect the Ohka, a far more effective jet-propelled suicide aircraft. The Ohkas get a rare (for kamikazes, who are generally portrayed as crazy idiots) SympatheticPOV and CrowningMomentOfAwesome when they [[spoiler: totally destroy the Russian invasion fleet and later the Soviet atomic weapons research facility.]] Earlier, in Designated Targets, it's shown how futile these are against Metal Storm turrets.
** Interestingly, when the Japanese first board the Indonesian ship ''Sutanto'', Commander Hidaka reads a news report about terrorist suicide bombings in 2021. He assumes the article is about kamikaze-like attacks, not a guy strapping himself with C4, and is bewildered why someone would crash their airplane into a target rather than simply bomb it. After a {{beat}}, he admits that a desperate person might just do it.
* SuperweaponSurprise: No one expected [[spoiler: the Soviets]] to drop the Bomb first. The Germans' mass deployment of nerve gas and anthrax against them also came as a shock.
** Reversed with the nuclear weapons. While [[spoiler: the Soviets]] are the first to drop the bomb, it is revealed that the Americans had [[spoiler: already had one for months, and were waiting for the Soviets to show their nuclear hand first. In the time it takes for the Soviets to build and four to five bombs, the Americans have constructed a dozen.]]
* TakeThat: Himmler wonders how this "Microsoft" could possibly (have) become the pre-eminent software supplier when their product is so annoying and buggy.
* TechnologyPorn: All the descriptions and exposition of the 2021 group, ranging from their chameleon-skinned half-liquid full body armor, "thermopliable" uniforms that keep the wearer cool, even in a scorching, humid jungle, remote-controlled non-explosive torpedoes that intercept other torpedoes and smash into enemy boats, the assault rifle that fires caseless rounds that explode in razor-sharp fragments when hitting organic targets, and [=AI=]s.
* TeleFrag: The USS ''Leyte Gulf'' from 2021 gets "spliced" at an angle with the USS ''Astoria'' by the Transition. Many are killed on both sides by merging with bulkheads, walls, and even people. Two crewmembers from these ships merge at the hip and [[MutualKill beat each other to death]] in a pain-induced frenzy.
* ThereIsNoKillLikeOverkill: When a panzer army is sent to counterattack against the landings in Calais, the Allies bomb it so thoroughly that it leaves the ground scorched black like a cartoon for miles and miles, and there is nothing left of it.
* VillainousBSOD: Hitler, after a long period of mental and physical decline as Germany's fortunes wane, [[spoiler:collapses and suffers a disabling stroke upon hearing the Soviet have used nuclear weapons against Germany.]]
* WarIsHell
* WarriorPoet: Masaharu Homma, known as the Poet General.
* WhatTheHellHero: Split. Lieutenant Lohrey from the Australian submarine submachineguns a bunch of Chinese prisoners who were escaping torpedoed Japanese transports. At the time, the prisoners were threatening to swamp a PT boat on a critical mission, and the Lieutenant's actions didn't bother the uptimers at all. The 'temps on the scene and later [=MacArthur=] and some of the other 1940s-era higher ups are outraged.
** It should surprise no one who the captain of the PT was. [[spoiler:[[UsefulNotes/JohnFKennedy Yep!]]]]
** As per NotSoDifferent above, the mass execution and burial of Japanese [=POWs=].
* WickedCultured: Admiral Hidaka has studied in the States before, at Stanford and Harvard.
* WonTheWarLostThePeace: At the end of the war, the Soviets have taken over much more of Europe than they did in real life, and the Cold War has started years earlier, much better armed and better prepared. Even worse, it is flat-out stated that Stalin is no longer merely unreasonably paranoid, but flat out ''insane''.
* YouHaveOutlivedYourUsefulness: After the HMAS ''Havoc'' lets a Japanese kamikaze-carrier live, allowing it to destroy a Soviet A-bomb facility, the sub quickly sinks the carrier, ''after'' receiving a message about the ceasefire. Also a case of removing witnesses, as the sub lingers to make sure there are no survivors.