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HoI 4 Dev Diary - Japan Rework

Hello, and welcome to the first dev diary of 2018!

Although considering today’s topic perhaps we should call it the first dev diary of the year Heisei 30.

When we decided to expand on China for Waking the Tiger, we also decided that we would need to take another look at the Japanese focus tree and maybe do some minor rework and some alt-history expansions. While we were basically happy with the existing German focus tree, we felt that Japan might need a somewhat more extensive rework, so we asked our QA to compile a list of issues they had with the existing tree.

QA noted the lack of flavor and interesting choices, as well as the lack of really unique gameplay. Their final recommendation was fairly short:

Burn it down. All of it.

So we did.

japan_ft_3.jpg


As you can see, we have expanded the focus tree somewhat in comparison to the old one. The choice between striking north or south was a single focus each in the old tree, but has now been expanded into a full branch.

The first basic choice is what to do with the Kodoha (“Imperial Way”) faction in the military. This faction wanted to remove the last remnants of civilian government and restore the Emperor to his rightful place (i.e. a figurehead while the military has the actual power, as things were before the Meiji Restoration of the 19th century). Historically, supporters of this faction launched a coup in February of 1936 which failed within days as the rest of the military refused to support it.

For reasons of transparency and playability, we decided to not have the coup be an event that fires on or around a set date but made the choice of whether to support or purge the Kodoha faction part of the focus tree. Purging the faction sends you down the historical path to attack China, strike south and attempt to seize the European colonies for their resources.

As you can see, we decided to make Japan form its own faction in the historical path instead of having them join the Axis. The cooperation between Japan and Germany does not fit neatly into our current faction system. While Japan did join the Tripartite Pact, it did not join the war against the Soviet Union, and indeed the Germans concealed preparations to attack the Soviet Union from their Asian allies. While there was some military cooperation and exchange of technical know-how, it wasn’t anything like the scale to which the Western Allies cooperated and indeed closer to the military cooperation between the Western Allies and the Soviet Union.

Still, it is a historical fact that Japan joined the Tripartite Pact, and as such you can do so in the historical path. But instead of joining the Axis faction, it creates a set of mutual guarantees between Germany, Italy and Japan. Should either of them be attacked instead of being the aggressor, they can be called into each other’s wars (and frankly, that is a lot closer to the relevant Article 4 of the treaty).

While still not perfect, we believe that this solves more problems than it creates. In particular, it means that Germany isn’t considered to still be fighting until Japan is taken (which led to amusing side effects such as the Luftwaffe forming the Legion Pekingente and evacuating to Japan when Germany falls). Speaking of taking Japan: AI Japan will now surrender if they have been nuked twice or lost Manchuria and Korea when they aren’t holding any territory in China. A player has the option through the same decision but can, of course, choose to fight to the bitter end (the AI is simply scripted to always pick the decision as soon as possible).

Capture_nuke.JPG


Simulating the war in China itself has come with its own challenges. We wanted to make the war feel like the long campaign it was (lasting, historically, from 1937 to 1945), not least because a Japan with a secure China can bring far more resources to bear on other targets than it did historically. At the same time, China starts with crippling penalties to its army, which means that Japan could easily defeat them. This is not particularly historical, as the Japanese expected a quick victory and were rudely surprised as the Chinese divisions fought very tenaciously.

So in order to make the campaign in China feel historical and give the Chinese player a chance to survive the initial invasion, we gave Japan some penalties for fighting in China (or, specifically, when fighting against Chinese troops). These penalties can be reduced through decisions, which raise world tension, so you will have to balance out the need to finish the campaign fast against raising world tension too quickly. We feel that this best represents the disdain the Japanese military held their opponents in - the Chinese simply weren’t worth a proper effort. Of course you, as the player, can hound your military into actually taking this conflict seriously, but the rest of the world may not like the idea of all-out warfare in China.

If you decide to side with the Kodoha faction, you effectively decide to strike north against the Soviet Union (as many in the Kodoha faction believed that the Soviets were the bigger threat). Subsequently, you will have to do some diplomatic maneuvering to keep your southern flank secure: Where historically the Japanese signed a Non-Aggression Pact with the Soviet Union while they were engaged in China (at least in part because the Battle of Kalkin Gol revealed some serious shortcomings in the Japanese military) to secure their northern flank, now you will have to sit down with the Western powers to ensure they will stay out of your hair while you deal with the Soviet Union. The London Naval Treaty reduces your dockyard output quite dramatically, but should serve to keep the Allies happy enough to look the other way when you go to war with the Communists. You will also have to send some equipment to your Manchurian “ally” to enable them to actually be somewhat useful in the war.

Later on, you can join a technological exchange program with Germany and even gain access to German Rocketry. Going down this path will also allow you to prospect for resources in Siberia.

But of course, you don’t need to follow history quite so closely. The democratic branch assumes that there could have been a significant pushback against the militarization of Japan from forces inside the civilian government. After all, Japan did have a functioning system of democratic elections and a working parliament during the Taisho period, a mere 10 years before the start of the game.

However, the militarists will not go quietly and will rather flee to Manchukuo than to surrender their position. Those elements of the army that can’t or won’t go abroad will start a civil war. Once that has been dealt with, you can rewrite the constitution to turn the Emperor into more of a constitutional monarch like the Europeans have. Afterwards, you can either try to reach out to the British and revive the Anglo-Japanese Alliance that has served so well during the beginning of the 20th century, or you can form your own West Pacific Treaty Organization (or WPTO).

But that still leaves the problem of Manchukuo, now firmly run by the Kwantung Army and supported by the very militarists you kicked out of the country. You will have to go and remove this threat to your freedom with some good old fashioned liberty bombs. From there, you can go and ensure that the colonial powers actually make good on their promises of freedom and self-determination for the native people. After all, if you can have a functioning democracy, why can’t the rest of Asia?

Capture_usa.JPG


Finally, there is the communist branch, which is not quite as far fetched as it may seem. Historically, Japan experienced the same rise of leftist agitation as the rest of the world, and the Japanese Communist Party enjoyed some successes until new legislation effectively banned it. Extensive measures by secret police agencies ensured that by 1936, the party posed little threat to the establishment. That, however, does not mean that there wasn’t a potential for a revolution. A large number of young officers came from a peasant or working-class background, and many civil servants considered socialism to be the way of the future (or in any event better than the Japanese form of capitalism dominated by the huge industrial conglomerates, the Zaibatsus).

hoi4_102.jpg


Historically, these civil servants were quickly banished to Manchukuo or “encouraged” by the secret police to reconsider their political stance. The first step towards a communist revolution in Japan, therefore, is to recall those civil servants that have kept the faith back to the homeland as well as sending a number of militarist hardliners to serve in Manchukuo instead. By arranging for a number of younger and more revolutionary minded officers to be promoted, you will also gain three very loyal and reasonably capable Generals who will definitely serve on your side in the unlikely event that a civil war should break out.

In the next step, you trigger a civil war.

Here, the decision to send the militarists to Manchukuo is both a blessing and a curse, as the Japanese holdings in China are taken over by loyalist troops - who are nonetheless unable to interfere in the civil war in the homelands. Once you have secured the Home Islands, you face another problem: The Emperor has been the foundation of Japan’s political system for thousands of years, and you have just deposed him. Your government has very little legitimacy in the eyes of the people, so you will have to rebuild their trust and stabilize the country. Only then can you go over to the Asian mainland and eradicate the pest of militarism before making common cause with either the Soviets or the Chinese Communists.

Capture_rivalry.JPG


The Japanese military was famous for the poor relations between the Imperial Army and the Imperial Navy (for example, it took the Navy until 1943 to confess that the Battle of Midway hadn’t gone exactly as planned and had in fact included a minor setback). In the game, this is represented by a number of decisions about the prioritization of resources and resolving conflicts between the two parties. Each decision affects a national spirit representing the balance of power between Army and Navy, which affects things like factory output and dockyard construction speed.

Capture_bicycles.JPG


Finally, as part of the rework, we decided to give Japan a bit more flavor by adding two units that are currently unique to Japan: Bicycle Battalions and Torpedo Cruisers. The former are about what you’d expect: infantry mounted on bicycles move a little faster than regular infantry but require some more resources. Although they are currently restricted to just Japan, they might end up being accessible for the rest of the world if we can find a place to put them in the tech tree. The Torpedo Cruisers were a fad in the Japanese Navy, who refitted a number of light cruisers with no less than 40 torpedo tubes (20 per broadside). Together with the Japanese bonuses to torpedo range, they can become a very terrifying force on the high seas - if you can manage to lure the enemy into a decisive surface battle.

Capture_torpedo.JPG


In the process, we also fixed a small issue that pestered some fans of Japanese aviation:

Capture_aircraft.JPG


Similar to the German focus tree, parts of the new focus tree will be part of the Waking the Tiger DLC. While most of the new focuses are free, the communist and democratic branches of the political part will be paid.

We will continue to rework vanilla focus trees in future DLCs (assuming, of course, that this meets with approval from the community), with an eye to which countries make sense with the overall theme of that DLC (for example, reworking the Soviet Union doesn’t really fit into a naval-focused DLC). Expect further updates on future plans after the release of Waking the Tiger.

DLC focus trees will see occasional updates when necessary to accommodate new mechanics (for example, Hungary now inherits Austria’s generals if they manage to form Austria-Hungary) but probably won’t see major reworks.

That is all for today. Tune in next week, when we open up Bag of Tricks #3. There is no World War Wednesday stream today, but it will be returning next week as normal.

Rejected Titles for this dev diary:

It’s pronounced YA-PAN

Glorious Nippon Focus Tree folded 1000 times

We’re not making this focus tree because we like you or anything

While you were waiting for dev diaries, we studied the blade

This focus tree makes our hearts go doki-doki

Girls und Schwerpunktbäume

Basically Sengoku 2

The Emperor demands Focus Trees

That wasn’t even the Focus Tree’s final form

FIXED: Japan’s Focus Tree no longer a Shameful Display

Samurai Communists are the best Communists

No Kaiju were harmed in the making of this Focus Tree

Japan 2.0

Japan Digital Remastered Edition

Japan HD Edition

Japan: Online Tactics Advanced
 
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Amazing work.
As someone living in Japan I'm incredibly pleased to see the amount of research and effort that has been put into the new Japanese focus tree. Kitakami-chan will finally gets her deserved credit in naval battles.
On another note, bicycle battalions were a big thing in Italy too. The Bersaglieri (Italian marksmen corps) basically had adopted them as their symbol (from1895), extensively used them during WWI and they still join parades while riding on bicycles to this day.
Bersaglieri.JPG

I'd dare say they are THE most famous bicycle battalion so it feels a bit weird seeing Japan get them before Italy, but I'm sure you guys will take care of that once the Italian focus tree gets some love (and it sort of needs it, there are so many interesting events / people that have not been properly represented in the game yet. Poor Fermi.).

P.S. Did Podcat assemble that very cute Panther I gave him at the last Paradoxcon?
 
Amazing work.
As someone living in Japan I'm incredibly pleased to see the amount of research and effort that has been put into the new Japanese focus tree. Kitakami-chan will finally gets her deserved credit in naval battles.
On another note, bicycle battalions were a big thing in Italy too. The Bersaglieri (Italian marksmen corps) basically had adopted them as their symbol (from1895), extensively used them during WWI and they still join parades while riding on bicycles to this day.
View attachment 325636
I'd dare say they are THE most famous bicycle battalion so it feels a bit weird seeing Japan get them before Italy, but I'm sure you guys will take care of that once the Italian focus tree gets some love (and it sort of needs it, there are so many interesting events / people that have not been properly represented in the game yet. Poor Fermi.).

P.S. Did Podcat assemble that very cute Panther I gave him at the last Paradoxcon?

BICYCLE! BICYCLE! BICYCLE! I want to ride my...

I simply love the new focuses that Japan and Germany are getting. I think i'll stop playing HOI4 for the while until i get WtT.
 
The more I read about this DLC, the more I want it right now. It is good the japan is getting a rework becuase the vanilla focus tree was too small and boring for a major power especially compared to the focus trees of kaiserreich
 
Amazing work.
As someone living in Japan I'm incredibly pleased to see the amount of research and effort that has been put into the new Japanese focus tree. Kitakami-chan will finally gets her deserved credit in naval battles.
On another note, bicycle battalions were a big thing in Italy too. The Bersaglieri (Italian marksmen corps) basically had adopted them as their symbol (from1895), extensively used them during WWI and they still join parades while riding on bicycles to this day.
View attachment 325636
I'd dare say they are THE most famous bicycle battalion so it feels a bit weird seeing Japan get them before Italy, but I'm sure you guys will take care of that once the Italian focus tree gets some love (and it sort of needs it, there are so many interesting events / people that have not been properly represented in the game yet. Poor Fermi.).

P.S. Did Podcat assemble that very cute Panther I gave him at the last Paradoxcon?
Well Japan invaded parts for south east asia using bicycles so that may be why. And I a little ashamed to say that I did not know that about Italy, when I and others call me a history buff.
 
Well Japan invaded parts for south east asia using bicycles so that may be why. And I a little ashamed to say that I did not know that about Italy, when I and others call me a history buff.
Should be and I am a little ashamed
 
One thing that struck my mind: how in the world is Tadamichi Kuribayashi, one of the few genuinely competent generals the IJA had, still not in the game?

Seriously, this man was legitimately good at his job. Iwo Jima saw the Japanese actually inflicting a 1:1 kill ratio on the Americans. All the other times, the Japanese just got steamrolled by superior industry, rational commanders and better logistics.

I mean, he even banned banzai charges. Sure, in-game it's effective at first, and the main attack tactic for Japan. It works...until China unlocks Guerrilla Tactics/gets good at defending, or the Americans discover Overwhelming Fire.

If Yamamoto makes it in, perhaps the other high-ranking officer that went to America should appear too.
 
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because they are infantries, and needed support eqmt which means they are more expensive.
IMO false. Eg. bicycle infantry in Poland had similar equipment like a uhlans. In addition, Russian Cossacks were more effective on the Eastern Front than fascist cyclists.
 
Japanese Communists should have the option of retaining the Emperor. Republican sentiment on the Japanese left was always near non-existent expect amongst the most extreme anarchists and marxists and in the period of the game most of the Communist Party capitulated to royalism because it simply wasn't worth opposing.
That's honestly kind of fascinating.

Do you think that if the Communists won, though, they might have then still purged the Emperor? After all, Communists have a long and sordid history of lying about what they're going to do.

BTW, I wonder, why would Japanese communists purge Emperor or force him to abdicate or whatever? After all, they are first of all Japanese, and only then - communists.
Staying the same puppet figure as in the old regime, Hirohito (or at least a heir, he announces) can stay a useful symbol of legitimacy of new communist government.
Would communist Japan even approve of having Emperor?
As soon as i saw "The fate of the Imperial Family" focus under communist branch the first thing that came to my mind is Bolsheviks executing Romanov family.
As I'm aware, acceptance of the Japanese Imperial Family and the Emperor as a titular ruler is a modern concept by the JCP. They say that the Japanese masses should determine whether or not the monarchy should be retained or not. This is likely because they, as a legal party with representatives in the National Diet, also need votes and pledging to abolish the monarchy completely isn't a very popular idea in Japan. Japanese communists, for the most part, have always supported republicanism in their nation.

I imagine the "Fate of the Imperial Family" focus will be deciding between keeping the Emperor as a figurehead or dissolving the monarchy completely, whether this be just reducing the family to a powerless nothing like in China or disposing them Romanov-style like in Russia. Personally, I hope all three are options, each with their own benefits and consequences.

Executing the Emperor would be a disastrous move, at least in the short-term, as it would probably result in mass uprisings around the country. This was also one of the reasons why the US didn't dispose of the Imperial Family or try Hirohito for war crimes following the Second World War—stability.
 
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As I'm aware, acceptance of the Japanese Imperial Family and the Emperor as a titular ruler is a modern concept by the JCP. They say that the Japanese masses should determine whether or not the monarchy should be retained or not. This is likely because they, as a legal party with representatives in the National Diet, also need votes and pledging to abolish the monarchy completely isn't a very popular idea in Japan. Japanese communists, for the most part, have always supported republicanism in their nation.

I imagine the "Fate of the Imperial Family" focus will be deciding between keeping the Emperor as a figurehead or dissolving the monarchy completely, whether this be just reducing the family to a powerless nothing like in China or disposing them Romanov-style like in Russia. Personally, I hope all three are options, each with their own benefits and consequences.

The current JCP policy is infinitely more Republican now than in the period we are talking about. Even before the Party leaders themselves capitulated to Imperialism as a result of the Tenkō phenomenon, there were major Monarchist factions like the red flag group, and one of the most prominent Japanese Marxist thinker was also a Monarchist and a Imperialist.

Sano Manabu basically justified this by claiming the Emperor was not part of any class, and that the role the Emperor played in Japanese history was progressive. Just as the Emperor had not only survived but been seen to make possible the transition from feudalism to capitalism, so too would it be possible for the transition from capitalism to socialism. The maintenance of the Japanese colonial Empire was essentially justified by following the Soviet model, the Japanese Empire would become a workers union of "Japan, Korea and Taiwan" - the working classes of which supposedly all shared the same interests.
 
So you won't get to invade Japan because they will be scripted to surrender before that ever happens? That's kind of lame in my opinion. It seems like the alternate history paths are more fleshed out than the actual real historical ones. The tree seems too small to me in general. And correct me if I'm wrong but you can't annex China and the Soviet Union in the same focus tree?

Also, giving Japanese forces a default disadvantage when fighting Chinese forces is pretty lame in my opinion. That's a very brute force and inelegant solution. I don't see Torpedo Cruisers being used considering how bad the naval warfare/combat system (feels like you have no input among other problems) currently is. And I find it extremely odd that we get Torpedo Cruisers which were never really used historically, but we don't get Escort Carriers or Destroyer Escorts or the I-400 class submarines. Not to mention all of historical Japan's heavy cruisers had torpedoes, but they don't in the game.

I can't imagine Bicycle Battalions will be very useful either. Maybe they could be made useful if we could customize the composition of Divisions and Battalions more. I hope that we get some new ship art for Japan. The more unique art and descriptions the better. I'm not too happy with the amount of scripting in this game. Scripting the war in China and surrender is inferior to having actual dynamic gameplay systems under the hood.
 
So you won't get to invade Japan because they will be scripted to surrender before that ever happens? That's kind of lame in my opinion. It seems like the alternate history paths are more fleshed out than the actual real historical ones. The tree seems too small to me in general. And correct me if I'm wrong but you can't annex China and the Soviet Union in the same focus tree?

Also, giving Japanese forces a default disadvantage when fighting Chinese forces is pretty lame in my opinion. That's a very brute force and inelegant solution. I don't see Torpedo Cruisers being used considering how bad the naval warfare/combat system (feels like you have no input among other problems) currently is. And I find it extremely odd that we get Torpedo Cruisers which were never really used historically, but we don't get Escort Carriers or Destroyer Escorts or the I-400 class submarines. Not to mention all of historical Japan's heavy cruisers had torpedoes, but they don't in the game.

I can't imagine Bicycle Battalions will be very useful either. Maybe they could be made useful if we could customize the composition of Divisions and Battalions more. I hope that we get some new ship art for Japan. The more unique art and descriptions the better. I'm not too happy with the amount of scripting in this game. Scripting the war in China and surrender is inferior to having actual dynamic gameplay systems under the hood.

Summed up perfectly my thoughts on the tree (with the exception of the bicycle infantry, im actually looking forwards to that!) It all just feels a bit artificial, particularly the surrender conditions and penalty against china
 
So, you are arguing for the inclusion of a submarine 'aircraft carrier' capable of carrying (but not launching or landing) 3 piss poor seaplanes?

I was kind of thinking of having them included more as a joke or an easter egg.
 
So you won't get to invade Japan because they will be scripted to surrender before that ever happens? That's kind of lame in my opinion. It seems like the alternate history paths are more fleshed out than the actual real historical ones. The tree seems too small to me in general. And correct me if I'm wrong but you can't annex China and the Soviet Union in the same focus tree?

Yeah I also thin that goes too far.
I like the idea of possible nuke surrender.
But is should be only a high percentage chance instead of an always true option.
 
Why are bicycles stronger than cavalry?
Can't see why. Most modern "cavalry" are just mounted infantry, not trained for combat on horseback. Bikes are a cheap, low profile transport but need to travel light if they are not to be 2 wheeled pushcarts for freight (as they were used in some places). Motorcycle troops were a fad as well - noisy and very exposed in any combat / recon role.,

Would communist Japan even approve of having Emperor?
As soon as i saw "The fate of the Imperial Family" focus under communist branch the first thing that came to my mind is Bolsheviks executing Romanov family.

Being a living god himself, and well acquainted with autocratic regimes, Stalin appreciated the advantages symbols including of revered hostage puppets. The Emperor could retain his religious and ceremonial roles by sticking to the party line.
 
So you won't get to invade Japan because they will be scripted to surrender before that ever happens? That's kind of lame in my opinion. It seems like the alternate history paths are more fleshed out than the actual real historical ones. The tree seems too small to me in general. And correct me if I'm wrong but you can't annex China and the Soviet Union in the same focus tree?

Also, giving Japanese forces a default disadvantage when fighting Chinese forces is pretty lame in my opinion. That's a very brute force and inelegant solution. I don't see Torpedo Cruisers being used considering how bad the naval warfare/combat system (feels like you have no input among other problems) currently is. And I find it extremely odd that we get Torpedo Cruisers which were never really used historically, but we don't get Escort Carriers or Destroyer Escorts or the I-400 class submarines. Not to mention all of historical Japan's heavy cruisers had torpedoes, but they don't in the game.

I can't imagine Bicycle Battalions will be very useful either. Maybe they could be made useful if we could customize the composition of Divisions and Battalions more. I hope that we get some new ship art for Japan. The more unique art and descriptions the better. I'm not too happy with the amount of scripting in this game. Scripting the war in China and surrender is inferior to having actual dynamic gameplay systems under the hood.

The entire debate with the Japanese high command was which option they could devote their resources to, north or south. They could not do both. Oil won out. But nothing said they would not have gone north afterwards IF the USA had peaced out.

Just like nothing says a player can't fabricate against Russia after going south.

Using nukes may not be easy, especially for smaller nations. It does require air superiority and the ai may actually challenge that now. And nothing says you have to nuke if you want to do Operation Olympic. Historically nukes were the final shove that brought about peace, the whole surrender movement was set up by a combination of submarine blockade, bombing, and land defeats.
 
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Personally, I think Bicycles would be better repped as something like a tech that effects Cavalry over their own distinct unit. After all, several countries denoted troops using them that way- including that one country east of Norway and west of Finland- and I think Cavalry upgrades would give you an actual good, pressing reason to produce the underappreciated unit outside of the very poorest nations.

Maybe further from there. Horses->Bikes->Motorcycles->something like Jeeps/Kubelwagens->Wheeled light tanks? All were either considered Cavalry by at least one of the majors (the USA in particular called everything imaginable Cavalry, outside of foot soldiers at least...) and filled the exact same role, as dirt cheap mobile troops. Also make it far easier to throw into the Europe war- it's hard to justify making independent Motorcycle troops, say, but it'd make perfect sense having them being a Cav upgrade.

Think HoI2 did that, actually...
 
"AI Japan will now surrender if they have been nuked twice or lost Manchuria and Korea when they aren’t holding any territory in China. A player has the option through the same decision but can, of course, choose to fight to the bitter end (the AI is simply scripted to always pick the decision as soon as possible)."
Seriouly, there should be another condition to be fulfilled before Japan surrender due to lost of "lost Manchuria and Korea". The Japanese Navy need to be weakened to a certain level, or it just doesn't make sense at all for Japan to surrender since their land still being fully protected by powerful navy.
Instead, "lost Manchuria and Korea" could give Japan and China a option to sign a peace treaty in the condition of Japan cede Manchuria and Mengkukuo to China and make Korea independent, and Japan can keep the rest intact.
 
I would love to have different branches for navalized versions of land-based planes (Seafires, Me 109T) and purpose-built carrier planes (Zero, Wildcat). We shall see.
Cluttering up the tech tree with multiple branches is the wrong approach. It's completely unwieldy in Black Ice style mods. What's more workable is to have aircraft designers grant meaningful equipment variants instead of hohum equipment bonuses.