The Modern World Wars, especially World Wars I and II, have reshaped the global geopolitical map in profound ways. This conflict is not only a battle of arms but also a struggle for ideology, power and territorial domination. With triggers such as nationalism, imperialism, and ideological conflict, these wars resulted in the formation of new allies and political blocs. After World War I, the Treaty of Versailles in 1919 marked the beginning of significant changes. Germany was forced to pay large reparations and lost much territory, creating discontent that led to World War II. This created a power vacuum in Europe, allowing the rise of totalitarian regimes such as Nazism in Germany and Fascism in Italy. World War II deepened this conflict, involving countries around the world. The war brought a domino effect into geopolitics, with the formation of two large camps: the Western Bloc led by the United States and the Eastern Bloc led by the Soviet Union. The industrial revolution and technological advances brought tactical changes, so that war not only changed foreign policy but also domestic social dynamics. After the conflict, the world was divided into states controlled either directly or indirectly by great powers. The influence and hegemony of the United States increased, making the US dollar the global reserve currency. On the other hand, Communism spread, triggering a cold war that lasted until the end of the 20th century. By the way, the impact of the Modern World War was not limited to politics alone; Economic, social and cultural aspects are also affected. War refugees, changing demographics, and the civil rights movement emerged in response to the atrocities of war. Thus, modern geopolitics cannot be separated from the history of this conflict. The cold war and its struggle for influence in developing countries led to many armed conflicts, such as the Korean and Vietnam Wars. This influence inevitably creates new alliances, strengthens international organizations such as the UN, and encourages countries to cooperate on global issues such as human rights and sustainable development. Continuing into the 21st century, the impact of the Modern World War is still being felt, especially with the emergence of new powers such as China. This competition for military and economic power shows that modern geopolitics is still deeply influenced by the legacy of past conflicts. Alternative aspects such as cyber warfare and global terrorism are now becoming new challenges for global stability. The challenge for countries now is how to manage these tensions in an interconnected global context, emphasizing diplomacy and international cooperation. Modern geopolitics continues to adapt, considering that the world stage is always changing.