In Japan if you want to buy a car, you buy a Mitsubishi
In Japan if you want to buy construction machinery, you buy a Mitsubishi
In Japan if you want to buy a tank, you buy a Mitsubishi
In Japan if you want to buy a fighter jet, you buy a Mitsubishi
In Japan if you want to buy a ship or warship, you buy a Mitsubishi
In Japan if you want to buy a space rocket, you buy a Mitsubishi
In Japan if you want to buy a guided missile, you buy a Mitsubishi
Do you get the point?
I invite you to check the list of products Mitsubishi manufactures under aerospace, missiles, tanks, etc.
https://en.wikipedia.org/wiki/Mitsubishi_Heavy_Industries#Products
The same applies for the other big Japanese conglomerates like Kawasaki, Fuji, etc. 90% of their military equipment is manufactured in Japan in their own plants be it original homegrown design or licensed designs (which seems people can't get it in their heads that licensed design means they get the designs, specs and whatever else tooling the original company provides so Japan can manufacture it in their factories, it's not like they sell them the whole thing or a set of legos to assemble)
Like I said and I'll repeat that they have transferred it doesn't mean their companies, engineers and chemist have lost all knowledge of how to make explosives, bullets and bomb casings and all their military machinery they've been manufacturing themselves for decades! It's not like Japan have regressed to the stone age. Their whole country as they were in 2015, land, buildings and everything was transferred with them, it's not a single high-school dude iseakaied with only the vague knowledge left in their brain.
If they can design and manufacture their own assault rifles do you think they'd depend on foreign countries to manufacture standard 5.56mm or 7.52mm ammo? If they can design and manufacture their own AAM-3 to AAM-5 missiles which are equivalent to American sidewinders and amraams, why would you think they are unable to manufacture more?
But, but, but the raw materials!? So their geologists, engineers and chemists lost their knowledge for how to prospect and process minerals? Their refineries, chemical plants, foundries, factories, power plants that have been doing their usual job all this time stopped working? If they were able to negotiate for agricultural stuff with Qua-trayne and found Quila had oil and negotiated with them, they can't prospect for mineral mines and buy raw materials from the other countries they have diplomatic relations with?
But, but, but the microchips and electronics!? That most cheap manufacture has moved to China and the cutting edge EUV chip lithography is monopolized by Dutch ASML and latest nodes microchip manufacturing is done by TSMC doesn't mean Japan has stopped manufacturing electronics. Just like other fabs are still pumping trailing edge or older nodes microchips for electronics that don't need cutting edge nodes and just like Intel have their own fabs in the USA and Israel. Matsushita, Hitachi, Canon, etc still have their own fabs in Japan, they may not be 2024 3 or 4 nanometer nodes but still decades/centuries ahead of anything from that world and more than enough for their timeline and military usage. And still up to this day, a lot of the best electronic components are still made by Japan. And as discussed in another chapter thread ASML is irrelevant since their EUV didn't overtake other chip lithography till 2017, Nihonkoku is 2015's Japan. Also for military the chips have never used cutting edge nodes because of lack of testing and robustness needed for such usage. Another example of why some fields don't use cutting edge microchip nodes is space and satellites where they still use 90's design/node processors because they need to work flawlessly for decades because space radiation wrecks microchips with tiny cutting edge nodes and cause electrons to jump where you don't want them. Astronauts need to replace their ipads and laptops every few months for those reasons.
.
