Japan Rejected Poland's War Declaration

During World War II, Poland's government in exile formally declared war on only one country: Japan, on December 11, 1941. Germany, Slovakia, and the Soviet Union had already invaded Poland, making separate declarations unnecessary, while Polish prime minister Wladyslaw Sikorski joined Britain's war against Japan reluctantly. Japanese prime minister Hideki Tojo refused the declaration, stating, "We do not accept Poland's challenge. The Poles, fighting for their freedom, only declared war on us under pressure from the United Kingdom." Agents from both countries continued cooperating, and the theoretical state of war lasted until Japan and the Polish People's Republic established official relations in 1957.

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