The Second Sino-Japanese War

The Second Sino-Japanese War (SJW) was historically started by Japan under pretense of the Marco Polo bridge incident on the 7th of July 1937, which led to 8 years of war in China until Japan's capitulation on September 9th, 1945. In Hearts of Iron 4, the SJW is represented by a number of mechanics designed to allow for the slow paced warfare that historically took place. This is a feature of the

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To start the SJW, due to Japan's reluctance to justify war goals under Emperor Hirohito, Japan needs to take the Marco Polo Bridge Incident national focus. Alternatively, Japan can wait until

  1. 重定向 Template:图标 hits the 75% mark to justify a war goal or until any Chinese faction nation takes the Pick a Fight With Japan or Provoke Japan national focus and starts a war. In the latter two cases, Japan will bypass the Marco Polo Bridge Incident national focus and enter the conflict without the according debuffs.

National Spirits in the SJW

Japan - Marco Polo Bridge Incident

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This Japanese national focus serves to debuff Japan's army in the beginning of the SJW. The debuffs can be undone in five steps by repeatedly taking the escalate the war in China decision. Taking the Secure China focus removes the Marco Polo debuffs entirely and allows the Ichi Go decision to be taken.


Nationalist China and Warlords - Army Corruption

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The Chinese starting national spirit gives the chinese factions in the SJW debuffs similar, but worse than the Japanese. It can be removed by taking the Army reform decisions.

Japanese Decisions

Escalate the War in China

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The decision to Escalate the war in China costs 25

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一号作战

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The Ichi Go decision gives a buff to Japanese forces vs Chinese factions for the 365 days duration of the Conquer China mission, which on succesful completion gives

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Nationalist China and Warlords Decisions

Army Reform

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The decision requires the Army Reform national focus, takes 90 days to complete and costs 100 army XP. Taking it three times removes the army related debuffs for China.

Scorched Earth Tactics

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Industrial Evacuations

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Border Clashes

During the SJW, China, Chinese warlord factions and Communist China may engage in Decision category border conflicts.pngBorder Clashes against each other.