World Wars I and II had a major impact on global politics, creating changes that not only affected the countries involved, but also define international relations to this day. After World War I, the Treaty of Versailles in 1919 created tensions in Europe by requiring Germany to pay large reparations and reducing its territory. This caused discontent within Germany, which was one of the causes of the rise of Nazism. Europe’s political structure shifted, with the emergence of new states and the fall of traditional monarchies. This political tension gave rise to new ideologies, such as fascism and communism, which influenced many countries. World War II had a wider impact, both geopolitically and ideologically. After the war, two great powers emerged on the global stage: the United States and the Soviet Union, sparking the Cold War. The rise of the US as a new superpower encouraged the spread of capitalism, while the Soviet Union spread communism in various parts of the world. Global politics was torn apart by these ideological differences, which were accentuated by the formation of blocs such as NATO and the Warsaw Pact. Decolonization occurred in a similar context, with many countries in Asia and Africa gaining independence after the war. These countries formulated new political identities and foreign policies, often adopting non-blocism, refusing to be beholden to any one superpower. This adds complexity to global politics, creating dynamic alliances and often unstable relationships. International organizations such as the United Nations (UN), founded after World War II, seek to create global order and security. The UN plays a role in resolving conflicts and promoting human rights, but is often faced with challenges due to the different interests of member states. This multilateral system creates new arenas for diplomacy, but also presents limits to the enforcement of decisions. The economic impact is also very significant. The Marshall Plan, launched by the post-war US, helped reconstruct Europe and accelerate economic growth, redefining global economic relations. The emphasis on trade liberalization resulted in international institutions such as the IMF and World Bank, changing the way countries interact economically. The emergence of new issues, such as human rights, the environment and terrorism, demands more attention in global politics. A broader concept of security, which includes non-military aspects, is important in approaching conflict. Conflicts in the Middle East and tensions in the Asia-Pacific show that the legacy of the World Wars still shapes foreign policy today. Changes in communications and transportation technology also contribute to the evolution of global politics. Globalization brings cross-border issues, where political decisions in one country can have a direct effect in other countries. The emergence of social media has changed the dynamics of political information and mobilization, providing new platforms for activism and political influence. The impact of the World Wars on global politics is a continuous process. Although the war has passed, its impact is felt in international relations, diplomacy, and national identity. Decisions made post-war continue to shape plans for development, security, and collaboration across multiple sectors. The divisions and partnerships formed in this context remain relevant to current geopolitical dynamics.