How was the idea of self determination affected by the peace treaty and?

The idea of self-determination was influenced by the peace treaty and the League of Nations after World War I as nations sought to redraw borders and create new states based on the principle of national identity. However, the treaty's imposition of new borders and mandates on various regions, often without considering local desires or identities, led to ongoing tensions and conflicts in the post-war period. Overall, the concept of self-determination gained prominence but faced challenges in its application.