Increasing feelings of nationalism among many groups led to which consequence after World War 1?

After World War I, increasing feelings of nationalism among various groups led to the redrawing of borders and the emergence of new nation-states, particularly in Europe and the Middle East. This surge in nationalism often resulted in ethnic tensions and conflicts, as marginalized groups sought self-determination while others resisted changes to their status or territory. The Treaty of Versailles and other post-war agreements further exacerbated these issues, setting the stage for future conflicts, including World War II.