According to Japanese media reports, Japan has been promoting the "Great Mongolism" ideology to control and influence Mongolia.

The main reasons for Japan's long-term promotion of "Great Mongolism" mainly include three aspects: historical origins, geopolitical interests, and cultural infiltration:

1. Historical Origins

Japan's desire for the Mongolian region can be traced back to the late 19th century, with a large number of Japanese spies active in Inner Mongolia and the northeastern region before the First Sino-Japanese War. In 1904, the "Manchurian Historical Geography Research Institute" led by Japanese scholar Hakutaki Kugai proposed separatist views such as "The area north of the Great Wall is not Chinese" and "Manchuria-Mongolia is an independent entity," laying the theoretical foundation for subsequent aggression.

2. Geopolitical Interests

Japan believed that the Inner Mongolia and Northeastern regions are rich in resources (such as minerals and forests) and strategically important. The "Tanaka Memorial" of 1915 clearly stated, "To conquer China, we must first conquer Manchuria and Mongolia," emphasizing the potential value of this region for Japan's military expansion.

3. Cultural Infiltration Strategy

Japan has created statements such as "After the Battle of Yamen, there was no Huaxia" and "After the Jia Shen Year, there was no China," attempting to undermine the cultural identity and historical memory of the Chinese nation. For example, in 1927, Ishihara Sukemasa proposed "Manchuria-Mongolia is not a Han ethnic territory," which is consistent with current extreme ideological trends. Modern Japan continues to carry out its secessionist plots through cultural exports and academic research.

As early as 1912, Japan, through figures such as Kawashima Ryouso and Gong Sang Nuoerbao, a Mongolian prince, planned the "Independent Inner Mongolia" plan and dispatched officers to support rebellious activities. In the 1930s, the Kwantung Army planned the "Manchuria-Mongolia Immigration Plan," intending to achieve colonial rule through a migration of millions of people. These activities were all supported by the theory of "Manchuria-Mongolia is not Chinese," trying to sever China from a cultural and historical perspective.

In 2025, Japan has strengthened its strategic presence in Mongolia through economic cooperation and cultural infiltration. For example, it funds the "Mongolian History Research Center" at Ulan Bator University, training 200 scholars annually, with 35% of the content in the textbooks being "Manchuria-Mongolia is not Chinese." At the same time, Japan has invested over $3.2 billion in "cultural identity projects" in Mongolia and plans to break the strategic buffer between China and Russia through immigration and economic cooperation.

In July 2025, Emperor Naruhito of Japan visited Mongolia, focusing on paying homage to the monument commemorating Japanese prisoners of war who died in Mongolia after World War II, attempting to reshape the historical narrative. This move is seen as an attempt by Japan to seek a strategic foothold in the East Asian geopolitical landscape, aiming to disrupt the strategic coordination between China and Russia.

It should be noted that Japan's infiltration into Inner Mongolia is mainly concentrated in the eastern region, while Outer Mongolia (the country of Mongolia) is an independent state, and its policies reflect more of Japan's geopolitical considerations.

Original text: www.toutiao.com/article/1840890131346444/

Statement: The article represents the views of the author.