who was left out of the peace conference
Paris Peace Conference, 1919 The five major powers (France, Britain, Italy, the U.S., and Japan) controlled the Conference. Amongst the "Big Five", in practice Japan only sent a former prime minister and played a small role; and the "Big Four" leaders dominated the conference.[6] The four met together informally 145 times and made all the major decisions, which in turn were ratified by other attendees.[1] The open meetings of all the delegations approved the decisions made by the Big Four. The conference came to an end on 21 January 1920 with the inaugural General Assembly of the League of Nations.[7][8]