Answer:
The signing of the Japanese Constitution in 1889
The figures in the image suggest that the Japanese society was highly militarized and filled with patriotic citizens who were loyal to the Emperor and ready to sacrifice their lives and resources to defend the Japanese empire, space, and culture from Western imperialism.
Step-by-step explanation:
According to wikipedia.com, "Imperialism is a policy or ideology of extending the rule or authority of a country over other countries and peoples, often by military force or by gaining political and economic control."
The Japanese constitution of 1889, called the Meiji Constitution, was according to britannica.com, a constitution that was used by Japanese leaders to "define Japan as a capable, modern nation deserving of Western respect while preserving their own power." It was in operation from 1889 to 1947.