World Wars I and II had a significant impact on the global economy shaping the modern economic landscape. In the early 20th century, World War I (1914-1918) caused tremendous damage to the infrastructure of the countries involved. Huge material losses and high war costs fueled inflation and exorbitant debt, especially for victorious countries such as France and England. As a consequence, many European economies were decentralized, resulting in shortages of goods and deepening the global economic crisis in 1929. The impact of World War II (1939-1945) was no less significant. After cooperating in the war, the United States emerged as the dominant power on the western side. With New Deal policies, the US was transformed into the world’s industrial center, providing goods and technology needed in the global market. The war shifted industrial focus from consumer products to military equipment, producing new technologies that continued in the development of civilian industry. This resulted in rapid economic growth after the war ended. Thanks to the Marshall Plan, Europe slowly recovered from the devastation of the war. This program not only provides financial assistance, but also encourages the modernization of European industry, accelerating economic integration on the continent. With the development of international organizations such as the IMF and World Bank, countries began collaborating to prevent future crises, forming the basis for a multilateral approach to the global economy. The impact of the war was also felt in Asian and African countries that were targets of exploitation by colonial powers. Many independent countries struggled to build strong economies after the war, creating instability and internal conflict. On the other hand, some countries, especially Japan, have managed to rise rapidly, considering the application of Western technology and methodology, such as in the automotive electronics industry. From a social perspective, the war prompted shifts in the structure of the workforce, including increased participation of women in the workforce. This marked a change in economic dynamics, where women began to play an important role in production and consumption, influencing social and economic patterns in the post-war era. Overall, the impact of the World Wars on the global economy was complex. Although it triggered huge losses and crises, the war also served as a catalyst for innovation, international collaboration, and fundamental social transformation. Successfully balancing post-war needs with economic growth is a major challenge, but it also opens up new opportunities for global progress.