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Greater East Asia Co-Prosperity Sphere

World War II era Pan-Asian union under the Empire of Japan

  • 20 min read
  • 5 chapters

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Through Korea under Japanese rule, World War II and Asia

The proposed objectives of this union were to ensure economic self-sufficiency and cooperation among the member states, along with resisting the influence of Western imperialism and Soviet communism. In reality, militarists and nationalists saw it as an effective propaganda tool to enforce Japanese hegemony. The latter approach was reflected in a document released by Japan's Ministry of Health and Welfare, An Investigation of Global Policy with the Yamato Race as Nucleus, which promoted Japanese supremacist theories. Japanese spokesmen openly described the Greater East Asia Co-Prosperity Sphere as a device for the "development of the Japanese race." When World War II ended, the Greater East Asia Co-Prosperity Sphere became a source of criticism and scorn for the Allies.

Development of the concept

The concept of a unified Asia under Japanese leadership had its roots dating back to the 16th century. For example, Toyotomi Hideyoshi proposed to make China, Korea, and Japan into "one". Moreover, Hideyoshi had further plans to expand into India, the Philippines, and other islands in the Pacific.

Monroe Doctrine for Japan

In Autumn 1872, United States minister to Japan Charles DeLong explained to U.S. General Charles LeGendre that he had been urging the Government of Japan to occupy Taiwan and "civilize" the Taiwanese indigenous people just as the U.S. had taken over the land of the Native Americans and "civilized" them. General LeGendre, the first non-Japanese person hired as a foreign policy expert by the Japanese government, encouraged the Japanese to declare a Japanese "sphere of influence" modeled on the Monroe Doctrine that the U.S. had declared for the exclusion of other powers from the Western Hemisphere. Such a Japanese sphere of influence would be the first time a non-White state would adopt such a policy . The stated aim of such a sphere of influence would be to civilize the barbarian peoples of Asia. "Pacify and civilize them if possible, and if not...exterminate them or otherwise deal with them as the United States and England have dealt with the barbarians," LeGendre had explained to the Japanese. Japan began invading Taiwan in 1874 and fought the Russian Empire for control of Manchuria starting in 1904.

Continuing this American policy, U.S. President Theodore Roosevelt also secretly reiterated to Japan that, just as the U.S. through the Monroe Doctrine and its Roosevelt Corollary declared the Western Hemisphere as part of its sphere of influence, Japan should create its own sphere of influence in the Pacific Rim. Teddy Roosevelt was encouraged by Japan embarking on Western ways and developing a modern military in the wake of the forced "Opening of Japan" by the United States that had begun with the Perry Expedition. Roosevelt envisioned demarcating respective United States and Japanese zones of military and economic dominance in the Pacific Rim. Roosevelt told the Japanese that they are more racially similar to Americans than Russians are, even though Russians are a White race, and that Japan should take its place among the great Western powers to dominate, among other areas, Korea and Manchuria, but that Japan must not encroach on U.S. possession of the Philippines. In much the same way that Europeans used the "backwardness" of African and Asian nations as a reason for why they had to conquer them, for the Japanese elite the "backwardness" of China and Korea was proof of the inferiority of those nations, thus giving the Japanese the "right" to conquer them. This mutual recognition of the U.S. and the Japanese zones of control in the Pacific would be secretly articulated in the Taft–Katsura Agreement of July 1905, essentially partitioning the Western Pacific Rim between the two powers.

In an interview with the New York Times days later, Katsura explained that Japan's "policy in the Far East will be in exact accord with that of England and the United States." Japan will soon force "upon Korea and China the same benefits of modern development that have been in the past forced on us.... We intend to begin a campaign of education in [Korea and China] such as we ourselves have experienced [and to develop] Asiatic commercial interests that will benefit us all. China and Korea are both atrociously mis-governed...These conditions we will endeavor to correct at the earliest possible date--by persuasion and education, if possible; by force, if necessary. And in this, as in all things, we expect to act in exact concurrence with the ideas and desires of England and the United States."

During the proceedings of the Lansing–Ishii Agreement, Japan explained to Western observers that their expansionism in Asia was analogous to the United States' Monroe Doctrine. This conception was influential in the development of the Greater East Asia Co-Prosperity concept, with the Japanese Army also comparing it to the Roosevelt Corollary. One of the reasons why Japan adopted imperialism was to resolve domestic issues such as overpopulation and resource scarcity. Another reason was to withstand Western imperialism.

On November 3, 1938, Prime Minister Fumimaro Konoe and Minister for Foreign Affairs Hachirō Arita proposed the development of the New Order in East Asia (東亜新秩序, Tōa Shin Chitsujo), which was limited to Japan, China, and the puppet state of Manchukuo. They believed that the union had 6 purposes:

  1. Permanent stability of Eastern Asia
  2. Neighbourly amity and international justice
  3. Joint defence against communism
  4. Creation of a new culture
  5. Economic cohesion and co-operation
  6. World peace

The vagueness of the above points were effective in making people more agreeable to militarism and collaborationism.

On June 29, 1940, Arita renamed the union the Greater East Asia Co-Prosperity Sphere, which he announced by radio address. At Yōsuke Matsuoka's advice, Arita emphasised on the economic aspects more. On August 1, Konoe, who still used the original name, expanded the scope of the union to include the territories of Southeast Asia. On November 5, Konoe reaffirmed that a Japan–Manchukuo–China yen bloc would continue and be "perfected".

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