Japanese government broke off diplomatic relations with Czechoslovakia 16th March 1939 already and also ceased recognizing Czechoslovakia as a sovereign state. The Czech mission in Japan was subsequently handed over to German authorities. The Germans also acquired four Czechoslovak consulates honorary in Japan.

Czech envoy in Japan F. Havlicek left for London after one year of Japanese imprisonment. Czechoslovak exile government in London officially declared war on Japan 9th December 1941. Czechoslovakia accepted Japanese surrender and general agreement on post-war development by co-signing the Postdam proclamation in 1945.

The text is, among others, based on the Jan Levora's article which was published in Information Bulletin "Ten years of Czech-Japanese Relations" of Embassy of Japan in the Czech republic.