The Pacte Briand-Kellogg, or Paris Pact, was signed in Paris on 27 août 1928 by sixty-three countries, Including Germany, that all "condemn recourse to war for the solution of international controversies and renounce it as an instrument of national policy in their mutual relations". The initiative came from Aristide Briand, French Minister of Foreign Affairs and Frank Kellogg, U.S. Secretary of State. It came into force on 24 July 1929. Kellogg receives why the Nobel Peace December 29 (Briand had already received, for Pact of Locarno, in 1926).
Since Pact of Locarno, international relations were allayed. If the pact is welcomed with enthusiasm in the United States, it raises more reserves in Europe. Its scope is limited effect, it certainly puts outlaw war but no sanctions are foreseen in case of infringement, only international condemnation is considered. The Memorandum Briand-Leger from 1930 want to establish security in Europe on other bases.