World Wars I and II had a significant impact on the world’s geopolitical map. This war not only changed territorial boundaries but also shifted global political, economic and military power. These changes began with the collapse of great empires, such as the Austro-Hungarian Empire and the Ottoman Empire, which paved the way for the formation of new states in Europe and the Middle East. After World War I, voices of nationalism grew stronger, creating opportunities for new nations to emerge. The formation of the League of Nations after the upheaval was aimed at preventing further conflict. However, tensions between countries remained, especially in Europe, which ultimately led to World War II. In World War II, the world witnessed the emergence of two great powers: the United States and the Soviet Union. With the success of the Allied alliance, the world was divided into two ideological blocs; capitalism versus communism. The cold war that followed led to an even sharper shift, with Western European countries turning to a liberal democratic model, while many countries in Eastern Europe fell to Soviet influence. Asia’s geopolitics are also experiencing significant changes. Japan’s defeat in World War II created a power vacuum in Asia, allowing the US to expand its influence in the region. During this period, India achieved independence, inspiring nationalist movements in Asia and Africa. Furthermore, this war accelerated decolonization in various parts of the world, especially in Africa and Asia. Many new countries were born as a result of the struggle against imperialism, changing the international political landscape. In this process, international organizations such as the UN emerged which tried to maintain global peace. The 1956 Suez crisis and the war in Vietnam also illustrated the rivalry between great powers and its impact on developing countries. While Western countries seek control over resources and influence, many countries in the third world try to balance between conflicting ideologies. Finally, the fall of the Berlin Wall in 1989 marked the end of the Cold War and accelerated the transition to the era of globalization. The countries of the former Soviet Union began to adopt a free market system, changing the geopolitical dynamics in Europe and providing opportunities for new economic growth. As a result of all these changes, the world is becoming increasingly interconnected. Alliance tactics, economic transactions and international agreements are crucial in determining the current geopolitical direction. Little did we know, these events formed the framework for the contemporary issues we face today, such as climate change, migration, and international terrorism. Every action and reaction in this context not only impacts the fate of individual nations, but also global stability and security. Thus, the geopolitical changes that occurred as a result of these two wars created new boundaries that are very important in understanding global dynamics today. The world we live in today is the result of a complex interaction between various historical, political, and social factors that began with this devastating but also productive conflict.