 Throughout the 1920s, Romania considered itself a pillar in the "cordon sanitaire" policy of containment of the Bolshevik threat, and avoided direct relations with the Soviet Union.On August 27, 1928, both Romania and the Soviet Union signed and ratified the Kellogg-Briand Pact, renouncing war as an instrument of national policy.Following this, on February 9, 1929, the Soviet Union signed a protocol with its western neighbors, Estonia, Latvia, Poland, and Romania, confirming adherence to the terms of the Pact.