What are the purposes and practical benefits of the annexation of Japan and Korea? Japanese security perspective at the time

Photo by Chris 73 (licensed under CC BY-SA 3.0)

Purpose of annexation of Japan and Korea

There are two main reasons why Japan annexed the Korean Peninsula. The reason that South Korea claims that it is for exploitation is completely untrue because the management of the Korean Peninsula was in the red. In other words, the amount of Japanese tax money that was spent on the Korean Peninsula was probably greater. Would you call this exploitation? Japan annexed the Korean Peninsula primarily for the purpose of defending Russia and building infrastructure from Manchuria to Busan.

Colonial plans for the Trans-Siberian Railway

It is clear that Russia's purpose is to use the Trans-Siberian Railway to colonize the Korean Peninsula and Manchuria, and in reality Russia is acquiring interests in northeastern Asia one after another. The reason why Japan carried out the Triple Intervention on the Liaodong Peninsula, which it acquired after the Sino-Japanese War, was because it did not want to hand over its Manchurian interests and because it did not want Japan to control the ports and shipping routes on the Liaodong Peninsula. The Baltic Fleet is not needed at all to colonize the continent or the Korean peninsula. The places you go by boat are places that can only be reached by boat. It's Japan, and there's another one. It's Taiwan. In other words, Russia was targeting the Japanese archipelago, the Korean Peninsula, and the Manchuria region, including Taiwan, which Japan had acquired in the Sino-Japanese War.

Busan is a stone’s throw from Japan

In １８９１, Tsar Alexander III of Russia issued a royal order to build a railway that would penetrate all of Russia, and it became clear that it was not just a railway construction, but that the Trans-Siberian Railway could be constructed from both the start and end points. It was also clear that Vladivostok, which was just a stone's throw away from the Korean peninsula, would be connected to the Russian capital. The Baltic Fleet is coming there. Japan succeeded in destroying the Baltic Fleet off the coast of Tsushima, the narrowest sea area, but what would happen if it were to pass through? If Russia acquires the Korean Peninsula one after another and builds a military port in Busan, the Japanese archipelago will be just a stone's throw away. In this form, the Korean Peninsula would have surrounded the Japanese archipelago in a circular shape, and Japan would have had no chance against Russia, which had great national power.

Obtained control of the Sea of Japan

With the defeat in the Russo-Japanese War, the Romanov dynasty lost power, and Lenin took advantage of this to launch the Russian Revolution during World War I. This was in １９１７, １２ years after the Russo-Japanese War. Still, Japan will have to be wary of the possibility that Russia will rebuild its system and send a fleet. If the Korean Peninsula becomes Japan due to the annexation of Japan and South Korea, the Russian fleet passing through the Sea of Japan will be caught in a pincer attack all the way to Vladivostok, and the situation in the Sea of Japan will be completely advantageous to Japan. Masu. In other words, Japan surrounded the Sea of Japan.

As a result of the Russo-Japanese War, Japan acquired the railway between Harbin and Port Arthur, which later became the South Manchurian Railway, under the Treaty of Portsmouth. And Russia's interests in Manchuria were largely rejected.

Connection with Manchuria Railway

After Korea became an independent nation after the Sino-Japanese War, Japan obtained the right to build a railway on the Korean Peninsula, and built a railway across the peninsula to Busan. After the Russo-Japanese War, the Harbin-Lushun railway obtained in Manchuria was expanded and connected to the railway on the Korean Peninsula. In other words, Japan built a huge infrastructure that connects the Manchurian region to Busan, which is just a stone's throw from Japan. This will ensure infrastructure by sea and land from Dalian and by rail. In other words, victory in the Russo-Japanese War meant that the Sea of Japan was surrounded in both name and reality, making it an exclusive maritime area, and connecting it with southern Manchuria by railway. will be sold to Manchukuo. In other words, Japan obtained the Korean Peninsula and Manchuria, which Russia had been trying to obtain.

The defense line moves northward

This was a result of Japan's large expansion from the perspective of Japan's security against Russia, and in the past there was a critical situation in which Tsushima might become the line of defense, but now the line of defense is now more than １０００ km away. This means that it has also moved northward.

At that time, the Korean peninsula was in constant political instability and conflict, and the country's finances were in a state of collapse as it had failed to issue its own currency. Diplomatically, Japan has sold various interests to Russia due to financial issues, and the fact that the Korean Peninsula is in doubt from the perspective of Japan's security.

Japan's security was also in doubt. This was due to the size of Russia's national power at the time, and if the Russian fleet were to succeed in moving north through the Sea of Japan, Japan would be in a hopeless situation.

Meaning in connection with Manchuria

Conversely, by placing Manchuria and the Korean Peninsula under control, Japan's security became rock solid. For this reason, Russia was geopolitically inferior to Japan, and even when World War II broke out, the Soviet Union signed a Japan-Soviet Nonaggression Pact. If Japan were to invade the Far East while fighting the Nazis in Europe, Russia would be left alone. In this sense, one of the reasons why the management of the Korean Peninsula was in the red is that it required various investments such as building railways and developing infrastructure from Manchuria to Japan. The administration of the Korean Peninsula was financially in the red, but what if we considered it in conjunction with Manchuria?

Taiwan Governor-General Railway

Let's compare it with the longitudinal railway under Taiwan's rule. Even if you look at it this way, the railways on the Korean Peninsula cover more areas. This may be due to the difference in population of the Korean peninsula, which had a population of １３.１３ million compared to ２.６ million at the beginning of Taiwan's rule, and the fact that the central part of Taiwan is mountainous. While the railway was completed, it seems that the Korean peninsula had a very different role as a railway that ran from Manchuria to Japan. To this day, Korean railways still use the Korean Government-General's Office railway line that was built at this time. Regarding Taiwan, it is also based on the Taiwan Governor-General Railway.

Kim Jong Un traveling by train

North Korea actually still uses this line, and since the South Manchurian Railway was converted to China, it naturally connects to China. When Kim Jong-un visits China, he travels by train, but he is actually using the benefits of the Korean Government-General's Office Railway.

Organized by dividing into prewar, wartime, and postwar periods.

In today's world, it is completely understandable to think that the annexation of Japan and Korea was a failure. Perhaps this is because South Korea is a country that has experienced many frustrating things for Japan, such as the occupation of Takeshima and the subsequent anti-Japanese movements. If you look at history, there is no doubt that this was caused by the annexation of Japan and Korea. On the other hand, the Manchurian region was rich in resources such as coal, oil, iron, and aluminum, and was used to produce agricultural fertilizers and machine tools. If Russia were to cut off the land route to transport this to Japan, Japan would end up there.

Speaking of what Japan failed at, it was actually in the post-war period. The restoration of diplomatic relations in １９６５ was based on the conclus