events
World War II: Poland declares war on the Empire of Japan.
Related Wikipedia articles
Polish government-in-exile
Government of Poland in exile (London, 1940–1990)
The Polish government-in-exile, officially known as the Government of the Republic of Poland in exile, was the government in exile of Poland formed in the aftermath of the Invasion of Poland of September 1939, and the subsequent occupation of Poland by Germany, the Soviet Union,…Source: Wikipedia (CC BY-SA)
Empire of Japan
Japanese nation state from 1868 to 1947
The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From 1910 to 1945, it included the Japanese…Source: Wikipedia (CC BY-SA)