Yorokobashii Doumei

The Yorokobashii Doumei (「喜ばしい同盟」; English: "Joyous Alliance") is a series of treaties and agreements signed on 30 January 2015 between the United Kingdom and Japan which led to one the most stable alliances of the Galactic Age. The signature committed both countries to a technological and scientific alliance dedicated to escaping Earth and finding and contacting other Intelligent Species to help in the protection of Earth against the increasing threat of the Mondals. It was the culmination of the National Unity Government's rushed but rigorous diplomatic missions with the Government of Japan initially following post-Brexit trade talks.

Trivia

 * The signing of the alliance took place on 30 January 2015. This was also the 113th anniversary of the signing of the first Anglo-Japanese Alliance which ended the splendid isolation policy of the British Empire.