Supreme War Council was de-facto inner cabinet of Japan prior and during World War II.
Among memberes were Prime Minister, the Minister of Foreign Affairs, the Minister of War, the Minister of the Navy, the chiefs of the General Staffs of both the Army and the Navy.
President Wilson persuaded the public for war by declaring his twin goals of "a war to end war" and a crusade "to make the world safe for democracy." He argued that America only fought to shape an international order in which democracy could flourish without fear of dictators and militarists.
Japan demanded China's Shandong Peninsula and the German islands of the Pacific, which it had seized during the war.
After Japan threatened to walk out, Wilson accepted a compromise in which Japan kept Germany's economic holdings in Shandong and pledged to return the peninsula to China at a later date.
In this telegram the SupremeWarCouncil outlined its proposal for an Allied intervention in Russia and Siberia.
In response to the July 3 appeal by the SupremeWarCouncil for an intervention in Siberia, the White House convened a conference on July 6 to discuss the situation.
Japans formal declaration of its intent to intervene in Siberia was forwarded to the acting Secretary of State, Frank L. Polk, on August 2.