Global conflicts, especially those caused by World Wars I and II, had a broad and deep impact on all world society. Both changed the geopolitical, economic and social map that existed at that time. An in-depth analysis of these impacts can provide valuable lessons for us today. First, significant geopolitical changes occurred after the two world wars. Previously powerful states, such as Germany and Austria-Hungary, experienced collapse and the formation of new states. On the other hand, the United States and the Soviet Union emerged as superpowers. The influence of these two countries reshaped international relations and created tensions that led to the Cold War. Second, from an economic perspective, World Wars I and II also had a tremendous impact. Many countries experienced major economic losses and will take a long time to recover. A new political economy was formed, including the concepts of Marxism and Keynesianism. For example, the Marshall Plan launched after World War II helped Europe revive and repair its destroyed infrastructure. Third, the social impact caused by this war was also quite significant. Civilian casualties numbered in the millions, showing just how terrible the impact of war was on everyday life. Women, who during the war had taken over many roles in industry and labor, began to gain recognition of their rights. These changes paved the way for feminism and civil rights movements in the years to come. When looking at global conflict in a learning context, we can take several things away. First, the importance of diplomacy and negotiation in preventing war. History shows that agreements resulting from dialogue are far more effective than armed resolutions. Second, the need for international cooperation to deal with global problems, such as climate change and pandemics. Without global solidarity, these challenges are difficult to overcome. Third, learning from history teaches us about human values ​​and peace. Through the collective memory of the suffering caused by war, many countries are now focusing more on sustainable development and peaceful resolution of conflict. The adoption of international instruments such as the United Nations (UN) is an example of efforts to maintain world peace. Fourth, we also need to understand the long-term impact of war on future generations. The trauma left behind can leave an imprint on the collective memory of a nation, thereby influencing future relations between countries. Therefore, education about the history of war and its impact is vital to prevent the same pattern from repeating itself. Finally, global conflicts reveal the importance of responsive and ethical leadership. Leaders who are able to see further and not prioritize personal interests can avoid many historical mistakes. The courage to make the right decisions for the common good is a tough challenge in every era. Studying global conflict and its impact gives us insight and encouragement to create a better world. Lessons from history can help us understand the importance of maintaining peace, respecting differences, and building a more harmonious future.