HoI4 Japan 1936 Asian Geopolitical analysis

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HoI4 Japan 1936 Asia Geopolitical analysis


In HoI4, January 1936, Japan starts with two allied nations (puppet states), namely Kingdom of Mengjiang and Empire (unity 70%) of Manchukuo (unity 60%) They conform the Co-prosperity sphere (daitoa kyoeiken). The leaders are Prince Demchugdongrub and Emperor Puyi, respectively. The first one has “spirit of Genghis Khan” as main trait with offers a bonus of 5% in calvary attack.  Both are monarchist without elections.

Historically, the Japanese Kwantung Army (based in Manchukuo) in February 1936, decided to establish the Mongol Military Government (Ménggǔ Jūnzhèngfǔ). with Prince Demchugdongrub as the commander and Toyonori Yamauchi  as the military advisor. Then, the Japanese proclaimed that Prince Demchugdongrub on a mission to “inherit the great spirit of Genghis Khan and retake the territories that belong to Mongolia, completing the grand task of reviving the prosperity of the nationality”. This gives some clues on the historical strategic motivations of some of the alliances. It’s interesting that Paradox captured this detail.

HoI4 Geopolitical analysis Asia and Empire of  Japan.

HoI4 Geopolitical analysis Asia and Empire of Japan.


In March 1936, Manchukuo troops occupying Chahar Province invaded northeastern Suiyuan, which was controlled by the Shanxi warlord Yan Xishan. These Japanese-aligned troops seized Bailingmiao in northern Suiyuan, where the pro-Japanese Inner Mongolian Autonomous Political Council maintained its headquarters. Wonder if in game the troops will also march againts Shanxi, which has border with Chahar province. We conclude here than Shanxi and Mongolia are natural strategic enemies of Japan.

By Summer 1937 and after some defeats, Prince Demchugdongrub withdrew to Chahar and again reconstructed his army with Japanese help. By the time that the Second Sino-Japanese War began, in July 1937, his army consisted of 20,000 men in eight Cavalry Divisions. The forces under his command participated in Operation Chahar and the Battle of Taiyuan, when the Japanese and Mongol forces finally captured most of Suiyuan province.

His story is quite impressive because he managed to survive the war and even succeeded in re-enacting an independent territory after war in inner Mongolia:

After World War II, and the collapse of the Federation, Demchugdongrub lived in Beijing for four years under the supervision of the Kuomintang government. Just before the founding of the People’s Republic of China in August 1949 he managed to establish an “Autonomous Government” in the westernmost region of Inner Mongolia. In December, threatened by the Communist army, Demchugdongrub fled to Mongolia and was at first welcomed there, but was later arrested by the People’s Republic of Mongolia in the following February and deported to China in September, where he was charged with treason by the People’s Republic of China. Under supervision, he wrote nine memoirs and was pardoned 13 years later in April. After his release from jail Demchugdongrub worked in an Inner Mongolian history museum in Hohhot until his death at the age of 64.

Asia map is quite complex because of the names, and multiple states and Chinese nations. Xilin Gol and Chahar are the two states of  Kingdom of Mengjiang, mostly agriculture and only 1 industry in Chahar. Beijing and Tianjin states are very important strategically.




The following map shows clearly the existence of a buffer area controlled by Japanese between Manchukuo and Nationalist China, near Beijing. The City of Tangshan is Japanese controlled together with the post Qunhuangdao. Beijing and Tianjin cities are just on next to the Japanese territory, and close to the Yellow River. Historically, Beijing and Tianjin were occupied after the China incident in summer 1937. The HoI4 campaign game starts in January 1936. The imaginary line that connects Qingdao, Liaocheng, Daming and Taiyuan, and crossing the Yangtze river, will be important for possible future operations.


Buffer Japanese area between Manchukuo and Nationalist China in 1936.

Buffer Japanese area between Manchukuo and Nationalist China in 1936.


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