Locarno Treaties
In 1926, he received the Nobel Peace Prize along with German Foreign Minister Gustav Stresemann for the realization of the Locarno Treaties, which aimed at reconciliation between France and Germany after the First World War. To avoid another worldwide conflict, he was instrumental in the agreement known as the Kellogg–Briand Pact of 1929, as well to establish a "European Union" in 1929. However, all his efforts were compromised by the rise of nationalistic and revanchist ideas like Nazism and Fascism following the Great Depression.