What problems threatened peace after world war 1?

After World War I, several problems threatened peace, including the harsh terms of the Treaty of Versailles, which imposed severe reparations on Germany and created economic instability. The rise of nationalist movements and the redrawing of borders in Europe and the Middle East led to ethnic tensions and conflicts. Additionally, the failure of the League of Nations to effectively address disputes and prevent aggression further undermined efforts to maintain lasting peace. These factors collectively set the stage for future conflicts, including World War II.