The First World War (WWI), which lasted from 1914 to 1918, had a significant impact on global politics. One of the most important changes was the shift of power from Europe to the United States. As the conflict ended, the US emerged as a major economic and political power, changing the dynamics of international relations. One of the main impacts of WWI was the formation of the League of Nations in 1920. This organization was formed with the aim of preventing future conflict and promoting international cooperation. Although the League of Nations was not completely successful, this concept of international collaboration became the foundation for the creation of the United Nations (UN) after the Second World War. Renewal of Europe’s political map also occurred after WWI, which was caused by the collapse of great empires such as the Austro-Hungarian Empire and the Ottoman Empire. New states such as Czechoslovakia, Poland, and Yugoslavia emerged, signaling significant changes in Europe’s political landscape. These changes are often characterized by ethnic tensions and nationalism, which can be seen as the beginning of further conflicts. The First World War also influenced colonial politics. Many colonial countries saw their contribution to the war as a reason to support the independence movement. As a result, a wave of decolonization began, changing the political structures in Asia and Africa. Many of these countries gained independence between 1945 and 1960, which made the world map even more diverse. Furthermore, WWI strengthened totalitarian ideology. Countries such as Germany, Italy, and the Soviet Union experienced major political changes that led to the emergence of authoritarian regimes. The emergence of communism in Russia and fascism in Italy created a new paradigm in global politics, where ideology became a weapon in maintaining power. Finally, the economic impact of WWI also spread to global politics. The economic crisis that occurred in 1929 is often considered a consequence of the changes initiated by WWI. Economic instability provided an opportunity for extremist and populist forces to rise to power, which then sparked further conflict. Overall, WWI was a turning point that changed the political landscape of the world. Its impact is still felt today, shaping much of foreign policy and international relations. Every change that resulted from these conflicts, whether in the form of international organizations, political ideologies, or changes in power structures, contributed to the world we know today.