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  1. Kantai Kessen

    WI: Admiral Mineichi Koga doesn't fly into a typhoon in March 1944?

    https://en.wikipedia.org/wiki/Mineichi_Koga Mineichi Koga succeeded the famed Isoroku Yamamoto as commander in chief of the IJN's Combined Fleet in April 1943 and held this post until March 31 1944, when he died in a truly disastrous manner. What might have the consequences of Koga not dying...
  2. How could Japan keep the Army and Navy under Control

    Pretty much the title. I've read a fair bit about how the Army and Navy in Imperial Japan circumvent the civilian government and act independently. That causes some issues for Japan both internally and externally so it seems like a pretty big issue that would have to be solved in order to have a...
  3. Kantai Kessen

    AHC/WI: the Type 93 Long Lance is never developed

    The Type 93 Long Lance torpedo is possibly one of the most famous Japanese naval weapons of WW2, and nobody can deny that it was a beast of a device. However, I think we can all agree that it had design flaws, and that for all the effort and hope pinned on it, it often underperformed. Your...
  4. Kantai Kessen

    AHC/WI: Proper IJN battleships deployed at Guadalcanal

    If people here have watched the latest Drachinifel Drydock (24/10/21), he says at 11:36 that he would have sent the Nagato and the Mutsu down Ironbottom Sound during the 1942 Guadalcanal campaign to bombard Cactus Air Field, instead of the Hiei and Kirishima as they did historically during the...
  5. HistoryGunsFreedom1776

    What Are The Options Available For Both The Allies And Imperial Japan If ABDACOM Managed To Fend Off The Japanese?

    The purpose of this thread is not discussing how the American-British-Dutch-Australian Command managed to fend off against the invasion of the Southwest Pacific including but not limiting to the Dutch East Indies and the Philippines i.e. Bataan successfully holding out until, say, the fall of...
  6. Kantai Kessen

    AHC/WI: Akagi or Kaga?

    Imagine you are an ASB who is partial to the Imperial Japanese Navy, and you can choose one of the carriers of the IJN's 1st Carrier Division at the Battle of Midway to survive that unfortunate rendezvous with destiny. Alas, all three of her colleagues are going to die. Would you rather have...
  7. FernandoPerla

    Japanese invasion of Latin America (WWII)

    I've read there's a Japanese document found by the Allies of WWII, in which a plan for an invasion of Latin America is detailed; specifically, a perimeter around the Panama Canal comprising Central America, parts of Colombia, parts of Venezeula, Ecuador, and Peru. I think it's called Tanaka...
  8. Alternate Washington Naval Treaty with a WW1 German victory(?)

    Anyways, with a POD in spring of 1915, this is the alternate world in 1923, as a semi- to almost-realistic take on the popular Hearts of Iron 4 mod, Kaiserreich. The objective is to determine the outcome of this alternate Washington Naval Treaty.
  9. Kantai Kessen

    WI: no Indian Ocean Raid & earlier Operation MO?

    The POD of this Pacific War scenario is to do with this: https://en.wikipedia.org/wiki/Invasion_of_Salamaua%E2%80%93Lae In the midst of this: Around this time, the Indian Ocean Raid by the Kido Butai was being planned: https://en.wikipedia.org/wiki/Indian_Ocean_raid My proposed chain of...
  10. WI Operation Ten-Go Successful?

    In April 1945 things were not going well for the Empire of Japan. The once formidable Imperial Japanese Navy had suffered an uninterrupted string of crushing defeats which had left the once mighty fleet a mere shadow of its former self with only a small handful of operational ships remaining as...
  11. Kantai Kessen

    AHC/WI: Stronger IJN light cruiser line

    The IJN's four-strong Mogami-class are probably the most blatant example of naval treaty violation in human history: https://en.wikipedia.org/wiki/Mogami-class_cruiser Originally they were armed with fifteen 6.1-inch guns in five triple turrets, with a max RoF of 5 rounds a minute (the powder...
  12. Kantai Kessen

    WI: Japanese equivalent of SBD Dauntless?

    What it says on the tin. What if the Japanese had a SBD Dauntless-style dive/scout bomber instead of the D3A Val?
  13. Kantai Kessen

    WI: Shinano, Mutsu and an Unryu for Leyte Gulf

    Imagine that, in addition to the ships that VAdm Takeo Kurita possesses in the IJN's Centre Force at Leyte Gulf, he also has the Shinano, completed as a proper battleship instead of a crappy carrier, and the Mutsu, which doesn't blow up in 1943. This gives Centre Force the following capital...
  14. Kantai Kessen

    AHC/WI: Better IJN anti-submarine warfare in WW2

    Your challenge, should you choose to accept it, is to get the IJN's anti-submarine doctrine, ships, planes and other equipment into fighting shape for the Pacific War by December 1, 1941. You may use any POD after 1900; you must stay within historical resources used on the IJN. However, not...
  15. Kantai Kessen

    Who was the best IJN admiral of WW2?

    What it says on the tin. The IJN had some very fine commanders (Ozawa, Tanaka, Mikawa) and some idiots (Nishimura), as well as some people in the middle (Nagumo, Kurita, Kondo and possibly Yamaguchi). Who was the best at their job?
  16. Kantai Kessen

    WI: USS Washington alone at 2nd Guadalcanal?

    Imagine the following: USS South Dakota is more badly damaged at Santa Cruz Islands than in real life. Perhaps the torpedo that did in Porter hits her, or she gets struck by more bombs. This means that, when Vice Admiral Kondo and his force rock up to try and bombard Henderson Field again on...
  17. Force Z Survives

    So this POD is that No. 453 Squadron RAAF with its 16 Buffaloes possibly assisted by No. 488 Squadron RNZAF manages to provide a rotating CAP over Force Z as it attempted to retire to Singapore on Dec 10 1941. The presence of Fighter planes - impacts the ability of the IJN Bombers to...
  18. AHC: Civil war between the IJA and IJN

    Pretty much what it says on the tin. The relations between the Imperial Japanese Army and Navy were always incredibly fraught, but they only occasionally reached the point of actual large-scale violence (there was plenty of assassination). Your challenge is to create a full scale civil war...
  19. WaterproofPotatoes

    WI: A different Washington Naval Treaty and its Effects On WWII

    ACKNOWLEDGEMENTS: A big thanks to "consulting admirals" @jsb @Luminous @hipper @RamscoopRaider @steamboy for their stellar contributions to this thread. It would not be half as interesting without them! For the uninitiated, US hull classification symbols are used as abbreviations for ship...
  20. IJN Shinano - What if...

    Just thinking here, What if (a) the watertight compartments are properally tested and rubber supplied for the doors, and then either the IJN Shinano was never intercepted by the USS Archer-Fish or survives after being hit by 4 to 6 fish to makes Kure? I have no doubt that she would survive the...
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