History Manga / ArpeggioOfBlueSteel

*** A confirmed example of this trope are the remnants of United States Forces Japan, who after humanity's defeat against the Fog were effectively abandoned, but still retain all their military badassery. Though initially appearing as [[{{Eagleland}} Type 2 Eaglelanders]] who had their own agendas, they've more or less shifted into (or at least been presented in) Type 1 territory, being indirectly supportive of Blue Steel and Kamikage against Kita's faction of the Japanese government and are otherwise trustworthy. One would expect this to be a result of leftover loyalty to America, but according to their commander, Lieutenant Cruz Herder, they're loyal to Japan[[note]]as much of their membership married Japanese nationals and started families after they were left behind[[/note]] and now consider it their home country. In that regard, their motives are still questionable, but one has to admit this is a switch from usual depictions of Americans.

*** A confirmed example of this trope are the remnants of United States Forces Japan, who after humanity's defeat against the Fog were effectively abandoned, but still retain all their military badassery. Though initially appearing as [[{{Eagleland}} Type 2 Eaglelanders]] who had their own agendas, they've more or less shifted into (or at least been presented in) Type 1 territory, being indirectly supportive of Blue Steel and Kamikage against Kita's faction of the Japanese government and otherwise trustworthy. One would expect this to be a result of leftover loyalty to America, but according to their commander, Lieutenant Cruz Herder, they're loyal to Japan[[note]]as much of their membership married Japanese nationals and started families after they were left behind[[/note]] and now consider it their home country. In that regard, their motives are still questionable, but one has to admit this is a switch from usual depictions of Americans.

** Subverted: They learn and very fast.

* GodivaHair: Iona on her NakedFirstImpression.

* BlandThemeProduct: [[http://mangafox.me/manga/aoki_hagane_no_arpeggio/v04/c023/5.html Jenga? Or Genius?]]

* TheOjou: Yamato gives off this vibe, what with being a [[IncrediblyLamePun Yamato]] [[YamatoNadeshiko Nadeshiko]].

* AlternateHistory: The manga takes place in a setting where Russia masters supercavitation technology in the [=1990s=], and supercavitation torpedoes are invented. These torpedoes essentially make modern navies obsolete, [[ItGotWorse and then the Fleet of Fog showed up]].

* CombiningMecha: Fleet of Fog warships are capable of doing this. Takao linked up with I-501 in order to improve her anti-submarine capability, while Kirishima and Haruma combined both of their [=Wave Motion Gun=]s into a [[BeyondTheImpossible single massive]] WaveMotionGun.

* DidYouJustPunchOutCthulhu: The Hakugei III [[spoiler:becomes the first human made ship to sink not only one, but [[BeyondTheImpossible TWO Fleet of Fog battleships]]. Granted, they used stolen Fleet of Fog tech, but it was still a very big deal.]]

* AnthropomorphicPersonification: Fleet of Fog ships of heavy cruiser class and up (including large submarines) all have one. Iona is shown having at least 9 moving around. They represent the 'Union Core', which may or may not be the AI that runs the ship in question.

** In the real world, the [[http://en.wikipedia.org/wiki/VA-111_Shkval VA-11 Shkval]] has already been in service since the late 1990s with the Soviet, and later Russian Navy.

** At one point, an Army company under Kita's influence seizes the I-401's dock and arrests the crew; the Navy SEALs came ''very'' close to starting a firefight and rescuing the crew by force, before both sides were ordered to stand down.

* PhelbotinumAnalogy: The explanation of how the Klein Field works [[spoiler:as First Mate Sou was doing right before he was kidnapped]].

** Before the Fog showed up, it was the introduction of Supercavitation technology for torpedoes. This made torpedoes capable of going more than 300 knots the standard of naval warfare. [[hottip:* Ironically, in the real world, supercavitating torpedoes aren't yet gamebreakers, as their high speed is achieved at the expense of target tracking ability (the Shkval is an unguided torp) and range: 13km for the [[http://en.wikipedia.org/wiki/VA-111_Shkval VA-11 Shkval]], vs 38km for the [[http://en.wikipedia.org/wiki/ADCAP Mark 48 ADCAP]].]]

* AlternateHistory: The manga takes place in a setting where Russia masters supercavitation technology in the [=1990s=], and "supercavitation torpedoes" are invented. These torpedoes essentially make modern navies obsolete, [[ItGotWorse and then the Fleet of Fog showed up]].
** In the real world, the [[http://en.wikipedia.org/wiki/VA-111_Shkval VA-11 Shkval]] has already been in service since the late 1990s.

** Before the Fog showed up, it was the introduction of Supercavitation technology for torpedoes. This made torpedoes capable of going more than 300 knots the standard of naval warfare.

* MacGuffin: The series actually has two: The vibration torpedo which must be smuggled to the United States to mass produce, and the "Admiralty Code" that the Fleet of Fog is looking for.

** ''Hakugei'' uses a rocket engine to achieve supercavitation. This is [[http://www.spacewar.com/reports/Northrop_Grumman_Team_Selected_To_Evaluate_Supercavitation_Based_Underwater_Naval_Transport_999.html currently under research]] by {{DARPA}}.

** NazisWithGnarlyWeapons: It's mentioned that one of the flagships of the European based fleets is the Bismarck. Also, U-2501 appears, commanded by Zordan Stark, [[spoiler: a subordinate of Gunzou's father]].

* MacrossMissileMassacre: one of the tactics used by Takao, who puts up an impressive volume of fire for a mere heavy cruiser. She's later on the receiving end when approaching Iwo Jima.

* {{Unobtainium}}: Thanatonium [[spoiler:used for Fog Fleet corrosive torpedo/missle warheads]].

However, the ''I-401'' and her crew have more enemies than just the Fleet of Fog: The Japanese government are very keen on getting their hands on what initially was their ship. Bureaucrats look at ''I-401'' and drool. However, what nobody realized is that ''I-401'', like many ships now in the Fleet of Fog, has a mind of her own, and a body to fit.