2. THE ALLIANCE
Anglo-Japanese Alliance, (1902–23), alliance that bound Britain and
Japan to assist one another in regards with their respective interests in
China and Korea.
Directed against Russian expansionism in Far East, it was a cornerstone
of British and Japanese policy in Asia until after World War I.
The alliance served Japan in the Russo-Japanese War (1904–05) by
discouraging France, Russia’s European ally, from entering the war on
the Russian side. It was renewed in 1905 and again in 1911 after Japan’s
annexation of Korea. On the basis of its tie with Britain, Japan
participated in World War I on the side of the Allies.
3. THE TERMINATION
After the war the British no longer feared Russian encroachment in China
and wished to maintain close ties with the United States, which tended to
view Japan as its rival in the Pacific.
Following an unsuccessful attempt to bring the U.S. into the alliance at the
Washington Conference of 1921–22, Britain allowed it to lapse.
It was specifically terminated by the Four-Power Pacific Treaty (1921), a
vaguely worded agreement that left the Japanese without allies until the
conclusion of their Tripartite Pact with Germany and Italy in September
1940.