The Russo-Ukrainian war that began in 2022 has had a significant geopolitical impact on world stability. First, this conflict sparked tensions between major countries, especially between Russia and Western countries. NATO, which consists of European and North American countries, felt the need to increase its presence in Eastern Europe to respond to Russian aggression. This creates fears of a wider war, which could involve more countries and trigger global economic uncertainty. Second, the economic impact of this war is felt globally, especially in the energy and food sectors. Russia and Ukraine are major producers of natural gas, oil and grain. Export cuts from these two countries caused a spike in energy and food prices, fueling inflation in many countries. Countries that rely heavily on imports from the region, such as many countries in Africa and Asia, face the risk of famine and political instability due to soaring food prices. Furthermore, the refugee crisis resulting from war also contributes to challenges to global stability. Millions of Ukrainian refugees are seeking asylum in European countries, adding pressure to the social and economic systems of host countries. This could fuel ethnic and social tensions within the country, as well as raise concerns about immigrant integration. The geopolitical uncertainty created by this war also had an impact on international relations. Some countries, especially those with good relations with Russia, feel pressure to choose sides. Countries such as China and India face the dilemma of maintaining trade relations with Russia while maintaining good relations with Western countries. From a security perspective, NATO is trying to strengthen defense in Eastern Europe. The Baltic states, Lithuania, Latvia, and Estonia, for example, have expanded their defense budgets and developed plans to increase military readiness. These actions, while aimed at maintaining stability, could also exacerbate tensions with Russia. Additionally, the Russo-Ukrainian War could accelerate changes in global political and economic alliances. Countries that previously tended to be neutral may now shift to one of the camps, creating new blocs in global politics. The rise of nationalist sentiment in some countries may also lead to instability in international relations, with countries seeking to become more independent and less dependent on international partners. Diplomatic efforts to end conflicts are often hampered by distrust and ambitions of each party. Unsuccessful negotiations created a continuous cycle of tension, while human rights and humanitarian conditions in Ukraine worsened, attracting the attention of the international community. The impact of this war also reaches the global defense sector. Many countries are starting to rework their defense strategies, pushing for higher military spending and strengthening collaboration in the defense industry. This could trigger a new arms race, which of course has the potential to disrupt global stability. The war also inspired pro-democracy movements in other countries, providing an example of how smaller countries could resist larger aggression. However, on the other hand, the emergence of authoritarian rule in some countries can cause a reversal of democracy and often leads to increased government repressiveness. Overall, the geopolitical impact of the Russo-Ukrainian war was far-reaching and complex. World stability depends on the outcome of these conflicts and the response of the international community in maintaining global security and prosperity.