Story perspectives

Japanese Lieutenant Arrested After Knife Threat at Chinese Embassy

5/11/2026

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Summary

Story summary

A lieutenant entered the Chinese embassy in Tokyo in March with an 18-cm blade, threatening a diplomat.
The embassy said it had received a death threat from former police and Self-Defense Force members 19 days earlier.
China’s acting ambassador Shi Yong demanded a Japan investigation, called its security policy “offensive, expansionist, dangerous,” and warned against “remilitarisation.”
Defence Minister Shinjiro Koizumi and chief cabinet secretary Minoru Kihara called the break-in “deeply regrettable,” pledged cooperation with investigators and said Japan will take measures to prevent recurrence.
Police increased embassy security and arrested the suspect on trespass and illegal weapon possession charges.

History

Historical Context

After Prime Minister Kakuei Tanaka and Premier Zhou Enlai signed the Japan-China Joint Communiqué on 29 September 1972, diplomatic relations were restored and a Chinese embassy opened in Tokyo the following year. The normalization spurred an 83 % jump in bilateral trade in 1973, underscoring rapid economic ties. The recent March intrusion highlights lingering gaps in the security framework created after that era.

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Story summary

A lieutenant entered the Chinese embassy in Tokyo in March with an 18-cm blade, threatening a diplomat.
The embassy said it had received a death threat from former police and Self-Defense Force members 19 days earlier.
China’s acting ambassador Shi Yong demanded a Japan investigation, called its security policy “offensive, expansionist, dangerous,” and warned against “remilitarisation.”
Defence Minister Shinjiro Koizumi and chief cabinet secretary Minoru Kihara called the break-in “deeply regrettable,” pledged cooperation with investigators and said Japan will take measures to prevent recurrence.
Police increased embassy security and arrested the suspect on trespass and illegal weapon possession charges.

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