The Kanto-gun blatantly ignored government directives, assassinating Cho Sakurin and subsequently conquering all of Manchuria through the fabricated Ryujo-ko Jiken. Consequently, the assassination of Prime Minister Inukai Tsuyoshi completely destroyed Japanese party politics. Furthermore, Matsuoka Yosuke fiercely rejected international condemnation, leading Japan to formally withdraw from the League of Nations. Surprisingly, the Japanese public enthusiastically supported this dangerous path to isolation, intoxicated by the promise of economic prosperity.
During this era, regional warlords violently divided China. Cho Sakurin (The powerful warlord) effectively controlled the Manchurian territory. Initially, he maintained close ties with Japan. However, his growing independence eventually sparked intense friction. Consequently, radical officers within the Kanto-gun executed an extreme plot in 1928. Surprisingly, they completely ignored the civilian government and assassinated Cho Sakurin by bombing his personal train.
Therefore, this unprecedented incident demanded severe punishment. However, Tanaka Giichi (The hesitant prime minister) and the military high command failed to discipline the perpetrators, fearing domestic political backlash. This weak response dangerously proved that unauthorized military actions carried no consequences. Ultimately, this catastrophic leniency directly encouraged young officers to execute even more radical and violent operations.
🔍 Key Takeaways 🔍
The government’s catastrophic failure to punish rogue officers destroyed military discipline. Consequently, young commanders falsely believed they could independently dictate national policy. This disastrous leniency normalized insubordination and accelerated the military’s dangerous trajectory.
On September 18, 1931, radical Kanto-gun officers, including Itagaki Seishiro (The radical strategist) and Ishiwara Kanji (The visionary mastermind), intentionally bombed the Japanese-owned South Manchuria Railway. They immediately blamed Chinese forces, utilizing this Ryujo-ko Jiken to rapidly conquer the entire Manchurian region. Subsequently, they unilaterally established the puppet state of Manchukuo in 1932, installing Aishinkakura Fugi (The puppet emperor) as its figurehead ruler.
The paralyzed Japanese government could only retroactively approve this blatant military aggression. Inukai Tsuyoshi (The resilient prime minister) desperately attempted to restore civilian control over the military. However, naval officers brutally assassinated him during the Go-ichi-go Jiken. Consequently, this violent coup eradicated all political opposition, effectively terminating Japanese democracy and granting the military absolute, unchecked power.
🔍 Key Takeaways 🔍
Rogue military elements fabricated an incident to violently establish a puppet state. The subsequent assassination of the prime minister removed the final barrier to military dictatorship. Ultimately, this marked the definitive collapse of Japanese democracy.
The international community swiftly condemned these actions. The League of Nations dispatched the Ritton Chosadan, which definitively ruled that the Manchurian invasion was not legitimate self-defense. Fiercely rejecting this conclusion, Matsuoka Yosuke (The defiant diplomat) dramatically walked out of the League assembly in 1933. Therefore, Japan completely abandoned international cooperation, willingly choosing a dangerous path of global isolation.
Surprisingly, the Japanese public overwhelmingly celebrated this aggressive, uncompromising diplomatic stance. While history often labels this era the Kurai Tani, contemporary citizens were actually intoxicated by continuous military victories and the promise of vast Manchurian resources. Ultimately, the media aggressively fueled this nationalistic frenzy, proving that overwhelming public enthusiasm was the primary engine driving the military’s disastrous rampage.
🔍 Key Takeaways 🔍
Japan chose complete global isolation rather than accepting international condemnation. Paradoxically, the domestic public enthusiastically cheered this dangerous defiance, dreaming of economic salvation. Ultimately, passionate public support firmly propelled the nation toward catastrophic conflict.

── Finally, let's recap with the summary and FAQ of this article.
The Kanto-gun’s unauthorized actions definitively proved the complete collapse of civilian government control. The assassination of Inukai Tsuyoshi destroyed democracy, while the rejection of the Lytton Report isolated Japan globally. However, this reckless trajectory was heavily sustained by a public desperate for economic prosperity. The main points of this article are:
‣ The violent collapse of democracy and the creation of a puppet state.
‣ Global isolation aggressively fueled by enthusiastic public support.
We hope these historical lessons offer valuable perspectives for navigating modern societal challenges, illustrating how public desperation can eagerly endorse dangerous extremism.
Q1. Why did Japan withdraw from the League of Nations?
The international Lytton Report explicitly denied that the Manchurian invasion was self-defense and refused to recognize the puppet state of Manchukuo. Japan fiercely rejected this unacceptable conclusion.
Q2. What exactly was the state of Manchukuo?
Although Aishinkakura Fugi served as the official head of state, Japanese advisors and the Kanto-gun wielded all absolute power. It functioned entirely as a Japanese puppet state.
Q3. Why did the public enthusiastically support the military?
Citizens desperately hoped that Manchurian resources would cure the severe economic depression. Furthermore, continuous news of rapid military victories generated overwhelming nationalistic euphoria.








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