If World War 2 doesn't happen, how long would Japan have held onto Korea and Taiwan?

These are good points, but I'd like to add one thing. With no WWII, Japan probably doesn't see the rapid economic growth it did post-war IOTL, no economic boom probably means the birthrates don't collapse nearly as soon, so Japan may very well be able to flood Korea with millions of Japanese. Obviously not becoming the majority, but becoming a very sizable group making it easier for Japan to control the peninsula. The same thing probably happens in Taiwan, only the Japanese population might overtake the Chinese population there due to its smaller size.
How does that follow? Even if you end up with a larger population of ethnic Japanese, why would you get any significant influx to Korea? That peninsula would still be a substantially poorer area than metropolitan Japan, with an abundance of unskilled labour and a rising class of trained native professionals and a reputation as being home to people who are surely not Japanese. What would be the incentive for more Japanese to move there? If anything, you would be much more likely to see more net migration from Korea to Japan.
 
How does that follow? Even if you end up with a larger population of ethnic Japanese, why would you get any significant influx to Korea? That peninsula would still be a substantially poorer area than metropolitan Japan, with an abundance of unskilled labour and a rising class of trained native professionals and a reputation as being home to people who are surely not Japanese. What would be the incentive for more Japanese to move there? If anything, you would be much more likely to see more net migration from Korea to Japan.
That was always the Japanese colonial plan. They even had plans to settle Manchuria with Japanese because they believed at the time that the population would grow far too large for the home islands to hold. I believe that Imperial Japan had already sent about 2 million settlers to Manchukuo by the end of the empire. They managed that in only around a decade or so. I don't see why they wouldn't use that same plan for their other colonies.
 
Manchuria was a prosperous territory with an abundance of land and resources, undergoing rapid industrialization. There was a niche for Japanese migrants. A Korea with a superabundance of labour is not so attractive.
That was always the Japanese colonial plan. They even had plans to settle Manchuria with Japanese because they believed at the time that the population would grow far too large for the home islands to hold. I believe that Imperial Japan had already sent about 2 million settlers to Manchukuo by the end of the empire. They managed that in only around a decade or so. I don't see why they wouldn't use that same plan for their other colonies.
 
Manchuria was a prosperous territory with an abundance of land and resources, undergoing rapid industrialization. There was a niche for Japanese migrants. A Korea with a superabundance of labour is not so attractive.
I cannot find Japanese colonization numbers for Korea at the end of the Japanese Empire, but I have found that in 1910 (the year Korea was annexed) there were already 170,000 Japanese people in Korea. I would assume that number would only expand dramatically over the next three decades of Japanese rule. Something like 95% of all factories in Korea were Japanese owned and something like 50% of all arable farmland in Korea was Japanese owned by the start of the second world war. As Japan's population continues to skyrocket, do you expect migration to Korea to slow down? Mass colonization was always the plan for Imperial Japan, thats what they were going to do.
 
If World War 2 doesn't happen, how long would Japan have held onto Korea and Taiwan?

Lots of good points made above, but I think that statement of "If World War 2 doesn't happen" needs more of a POD to properly debate the potential butterflies. If it a WW2 where European War never happens, or does it also include the Asia-Pacific War?

Some of the possible variations that would impact:
-What is happening in Europe?
-What is happening in the Soviet Union?
-What is happening in the USA?

There are so many different interpretations of what could happen, that someone could equally argue 1960 as 2060 as end of Japanese Empire, depending on the context.

This isn't intended as an attack on the question, because I think it is a good discussion! Sorry if it sounded unduly harsh!
 
That was always the Japanese colonial plan. They even had plans to settle Manchuria with Japanese because they believed at the time that the population would grow far too large for the home islands to hold. I believe that Imperial Japan had already sent about 2 million settlers to Manchukuo by the end of the empire. They managed that in only around a decade or so. I don't see why they wouldn't use that same plan for their other colonies.
IIRC, they only managed to settle about 500,000 (the 2 million figure might include military personnel), will have to dig up the article.
 
Korea has its own cultural identity. If ww2 did not happen, the decolonization tide in 1960s onwards that happened in Vietnam and Africa would sweep Japan away. Communism and Capitalism were still the driving forces of international politics.

On another note, Japan would rather secure at least the southern half of the Sakhalin island and the whole Kuril Islands chain. For security reasons for both USSR and Japan, maybe the Sakhalin island could be traded so the USSR would own the northern half of the Kurils and Japan the southern plus the whole Sakhalin. Northern part of the island are tundra; fishing, oil and gas mining rights would have yet to be discussed so USSR did not lose a lot in terms of geopolitics -- the Kurils not the Sakhalin guard the waterway into and out of the Sea of Ohktosk. The prestige of the USSR could be very important too.
Such an agreement was made in the past, where Japan surrendered Sakhalin (karafuto) in exchange for the whole of the Kuril islands (chishima), but southern Sakhalin was taken after the Russo Japanese war.

Thus, it makes zero sense for Japan to trade off the Kuril islands.
 
I cannot find Japanese colonization numbers for Korea at the end of the Japanese Empire, but I have found that in 1910 (the year Korea was annexed) there were already 170,000 Japanese people in Korea. I would assume that number would only expand dramatically over the next three decades of Japanese rule. Something like 95% of all factories in Korea were Japanese owned and something like 50% of all arable farmland in Korea was Japanese owned by the start of the second world war. As Japan's population continues to skyrocket, do you expect migration to Korea to slow down? Mass colonization was always the plan for Imperial Japan, thats what they were going to do.
It looks like the European colonisation of Africa: mainly civil servants, soldiers, planters, small industrialists and missionaries (OK, they weren't effective at propagating Shintoism).
 
  1. There has never been a sovereign "Kurdistan". There was a sovereign Korea for centuries.
  2. Kurds were subjects of Ottoman Turkey for about 500 years (and of Persia). Koreans were never subjects of Japan till1910.
  3. Kurds were one of many ethnic minorities in a polyglot empire, where minorities (Albanians, Greeks, Armenians, Kurds) often rose to very high rank. Koreans were subjects of culturally uniform Japan, where no non-Japanese ever rose high.
  4. Most of "Kurdistan" is ethnically mixed. All of Korea is 100% Korean.
  5. There is no geographical line separating "Kurdistan" from Turkey. Korea is separated from Japan by 200 km of ocean.
  6. Kurds were divided between Persia and Turkey before WW I, and afterward between Iraq and Syria as well. All Koreans were in Korea.
The highlighted bits are only true if you round off. As mentioned above, there were ethnic minorities in Korea in 1910.

Even if you ignore any Koreans that had migrated elsewhere by 1910*, there were (and still are) also ethnic Koreans in neighbouring parts of Manchuria.


*Such as the Korean labourers in Hawaii, or the Pacific coast of the mainland US.

Korean Americans - Wikipedia
 
Lots of good points made above, but I think that statement of "If World War 2 doesn't happen" needs more of a POD to properly debate the potential butterflies. If it a WW2 where European War never happens, or does it also include the Asia-Pacific War?

Some of the possible variations that would impact:
-What is happening in Europe?
-What is happening in the Soviet Union?
-What is happening in the USA?

There are so many different interpretations of what could happen, that someone could equally argue 1960 as 2060 as end of Japanese Empire, depending on the context.

This isn't intended as an attack on the question, because I think it is a good discussion! Sorry if it sounded unduly harsh!
So the main concern is no Japanese invasion of China, no invasion of Manchuria either since that would lead to an overall war with China when it reunities. I am not sure about Europe, as I think Nazis would inevitable start wars once in power. Perhaps preventing both Japan and Germany from becoming fascist would be necessary but not sure the POD. I do know though both had some veneer of democracy that failed, so those could be more successful ITL. The USA might still be isolationist regarding Europe and only intervene in its own hemisphere, and not sure about the USSR. I don't think Stalin would pick a battle with the WAllies in this case, as he waited for the UK and France to be distracted before invading Finland, Eastern Poland, Latvia, Lithuania, Estonia and parts of Romania IRL.
 
It looks like the European colonisation of Africa: mainly civil servants, soldiers, planters, small industrialists and missionaries (OK, they weren't effective at propagating Shintoism).
Imperial Japanese Government viewed mass rural population migration as a solution to the crisis in the rural areas of the Home Islands.
https://apjjf.org/-Mori-Takemaro/1810/article.html

The rural crisis engendered by the Depression in the early 1930s proved an historical turning point for Japan, paving the way for war and fascism. The collapse of farming operations brought about by a sharp increase in the debts owed by farm households threatened to destabilize rural society, and the impoverishment of the countryside figured as a rationale in attempted coups d’état by young officers in the Imperial Japanese Navy and Imperial Japanese Army from the May 15th Incident of 1932 to the February 26th Incident of 1936.

To cope with the rural crisis, the government encouraged farmers to commit themselves to what was called the ‘Rural Economic Revitalization Campaign,’ which promised economic recovery by means of self-help efforts of farmers. Later attempts by the government to promote emigration to Manchuria, in particular the plan announced in 1936 to send one million Japanese farm households there over a twenty-year period, were carried out as part of this campaign.

The Rural Revitalization Campaign was launched in 1932 as a means of dealing with the effects of the depression. The government designated 76 per cent of all towns and villages as revitalization localities, and farmers were urged to reconstruct their villages on the basis of self-help. From late 1938 onward, the campaign shifted from promoting recovery from the depression to increasing food production, functioning thereafter as part of wartime controls over agriculture.

In contrast to rural revitalization, which sought domestic solutions to the crisis of the countryside in the depression years, policies promoting emigration to Manchuria sought to defuse the crisis by exporting one perceived cause of it: the surplus population of Japanese villages.

Manchuria was a prosperous territory with an abundance of land and resources, undergoing rapid industrialization. There was a niche for Japanese migrants. A Korea with a superabundance of labour is not so attractive.

Korea is actually quite attractive as a destination for migration, thought less than Manchuria.

Before further discussion of the case of Manchuria, it will be helpful to outline the general contours of twentieth-century emigration from Japan. As shown in Figure 8.1, the number of Japanese immigrants resident in such Japanese colonies as Korea, Karafuto (southern Sakhalin), Taiwan and Southern Manchuria (a Japanese leasehold since 1905) began to increase in the years following the Russo—Japanese War.

During the 1920s, the increase in Korea was particularly striking, rising from about 300,000 in the late 1910s to almost 600,000 in 1930. During the 1930s, however, the largest increase took place in Manchuria, with the total number of Japanese immigrants resident there surpassing the number in Korea about 1935. In addition, we can also see that the number of Japanese immigrants resident in China Proper escalated from a fairly low level from the mid-1930s, especially after the outbreak of hostilities between China and Japan in 1937. That is to say, it is clear that from about 1930 onward the balance shifted from emigration to Korea, Karafuto and Taiwan to emigration to Manchuria and China Proper, with the number of Japanese resident in Manchuria rising from 200,000 in 1930 to 1,000,000 in 1940.

Beyond Japan’s colonial empire, the number of Japanese immigrants resident in North America increased until the mid-1920s, but stabilized after passage of the Immigration Act of 1924 in the United States, one of the chief aims of which was to end immigration from Japan. From about that time, an increasing number of Japanese began to emigrate to Central and South America. During the initial four decades of the century, then, there were two main categories of emigration from Japan: that destined for Japan’s formal and informal empire and that destined for the Americas. The former consisted of ‘colonists’ backed by national policy, and the latter consisted of ‘economic migrants’ who sought to improve their lives and who received relatively little in the way of official encouragement. That Manchuria was the focus of emigration during the 1930s is also clear.

The Japanese also free up the Korean land by population displacements and force nationalization.

https://web.stanford.edu/class/e297a/Japan, Korea and Colonialism.doc
With its new found land, Japan implemented a large-scale resettlement program in which 98,000 Japanese owner-families settled in Korea prior to 1918 (Ministry of Culture and Tourism) Soon, Korean farmers were not only deprived of their own land but forced to work for the Japanese government. The fruits of their hard work would go to the Japanese government, and they were constantly on the brink of starvation. In addition, an estimate of 724,727 Korean workers were sent to mainland Japan, Sakhalin, and parts of the southern Pacific Islands as forced labor in the mining, construction, and shipbuilding industries.

https://www.asj.upd.edu.ph/mediabox...e-colonialism-korean-economic-development.pdf

Between 1911 to 1918, a series of regulations and ordinances on land-holding were issued to establish a new and better-defined concept of land ownership which corrected the complicated agricultural structure in Yi-Dynasty Korea. They provided the legal basis for land ownership, made available a land market, and allowed foreigners to buy lands in Korea. The Japanese colonial government then nationalized the royal and Buddhist lands and also the private lands for which ownership by the yangban elite was not identified owing to inadequate documentary certificates.

The vast amount of land thus nationalized was rapidly swallowed through purchase by Japanese companies like the Oriental Development Company and Fuji Industrial Company. By 1936, two-thirds of the total lands in Korea had passed into the hands of Japanese immigrants. From 1913-1939, the number of Korean landowners decreased from 21.8 percent to 19.0 percent; the number of Korean owner-tenants went down from 38.7 percent to 25.3 percent; and the number of Korean tenants increased from 39.4 percent to 55.7 percent.

@Pelranius
 
If Japan did avoid the Second World War, that requires the military factons which took the US into it did not take power. You would have a civilian government, one that would be at least somewhat democratic.

Democracies can do terrible things, but a Generalplan Ost is not likely. This is especially the case since Japan seems to have aimed for the assimilation of the Koreans; their extermination or reduction to a slave caste, IIRC, was not brought up before the Pacific War, if it was then.

I think that the rising numbers of Japanese in Korea has to be seen in the context of rapid growth migration both ways past Tsushima: The numbers of migrants from Japan to Korea grew at least much as the migration of Koreans to Japan.

It is also noteworthy that the number of Japanese in Manchukuo grew very rapidly, quickly exceeding the numbers of Japanese in Korea. This is despite the fact that Manchukuo was under Japanese control for a much shorter period of time than Korea, and despite the fact that the existence of Japanese Manchukuo was challenged—by its subjects, by neighbours—to an extent that Korea was not.

Arguing that the rapid growth of the Japanese population means that there would have had to have been extensive Japanese immigration to Korea overlooks the need for there to be economic incentives. How would most potential Japanese migrants obviously better themselves by moving to an economically poorer territory? That Manchukuo boomed so much despite its problems shows how there was a lack of incentives for very substantial Japanese immigration to Korea.
 
The Japanese also free up the Korean land by population displacements and force nationalization.
How was the structure of land ownership? Was it yeomen, latifundists or absentee landowners? And how would have the Korean natives reacted to this creation of a Japanese Ascendency like in Ireland, born out of the spoliation of the local peasants? Would Korea get enough industry to occupy natives and potential settlers?
Arguing that the rapid growth of the Japanese population means that there would have had to have been extensive Japanese immigration to Korea overlooks the need for there to be economic incentives. How would most potential Japanese migrants obviously better themselves by moving to an economically poorer territory? That Manchukuo boomed so much despite its problems shows how there was a lack of incentives for very substantial Japanese immigration to Korea.
A poorer tetrritory might have some prospectives of growth, but maybe there weren't enough space in Korea to settle.
 
Imperial Japanese Government viewed mass rural population migration as a solution to the crisis in the rural areas of the Home Islands.
https://apjjf.org/-Mori-Takemaro/1810/article.html





Korea is actually quite attractive as a destination for migration, thought less than Manchuria.



The Japanese also free up the Korean land by population displacements and force nationalization.

https://web.stanford.edu/class/e297a/Japan, Korea and Colonialism.doc


https://www.asj.upd.edu.ph/mediabox...e-colonialism-korean-economic-development.pdf



@Pelranius
The problem Japanese migration to Korea creating a "Shinto Ulster" was that eventually as Japanese industrialization speeds up, the Japanese migrant population would decrease (assuming that the Japanese colonists receive superior education and employment preferences compared to the natives) as the Japanese go back to the Home Islands for superior economic opportunities (or the urban areas of Korea).
 
How was the structure of land ownership? Was it yeomen, latifundists or absentee landowners? And how would have the Korean natives reacted to this creation of a Japanese Ascendency like in Ireland, born out of the spoliation of the local peasants? Would Korea get enough industry to occupy natives and potential settlers?

A poorer tetrritory might have some prospectives of growth, but maybe there weren't enough space in Korea to settle.
I do not doubt that the Japanese government of the time would have loved millions of Japanese to move to Korea. I just think that expectation was unlikely; Korea was not that attractive.

What is more likely, I think, is Korean migration to Japan. That had already begun on a large scale before the Second World War, and would have accelerated if Korea shared a country with Japan.
 
What is more likely, I think, is Korean migration to Japan. That had already begun on a large scale before the Second World War, and would have accelerated if Korea shared a country with Japan.
And what about migration to other colonies? After all, some Koreans still are living in the former Karafuto, and some Korean industrialists were investing in Manchuria.
 
And what about migration to other colonies? After all, some Koreans still are living in the former Karafuto, and some Korean industrialists were investing in Manchuria.
Quite. There were all sorts of potential networks that had only started up before the Pacific War. Agreed that Manchukuo could have become big.
 
Depending on the government's policy. If the Japanese government had started its 皇民化とも言う or Japanization as in the OTL, most Korean and Taiwanese would identify themselves as Japanese like residents of Okinawa.

Otherwise, Japan would have given up these colonies in late 60s or early 70s to avoid heavy military casualties and high costs.

 
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