The Russo-Ukrainian war that started in February 2022 has created a wave of uncertainty around the world, especially in Europe. These geopolitical tensions are disrupting supply chains and triggering spikes in energy prices, potentially destroying Europe’s economic stability. The direct impact can be seen from the energy crisis, soaring inflation and financial market uncertainty. Energy is one of the most affected sectors. Europe is highly dependent on natural gas supplies from Russia. As a result of the war, many European countries began to look for alternatives, but this transition was not easy. The spike in gas prices caused industrial energy costs to rise, fueling inflation. For example, Germany, as one of the largest economies in Europe, experienced a spike in energy prices of up to 40% in a short time. This forces the government to implement subsidy policies, which can burden the state budget. Inflation, initially driven by the COVID-19 pandemic, has worsened due to the war. Economists project inflation in the euro zone could reach double digits in the near future. High inflation erodes people’s purchasing power and can cause a slowdown in economic growth. Some countries, such as Italy and Spain, are faced with the challenge of maintaining positive growth amidst surging living costs. The agricultural sector also did not escape the impact of war. Ukraine is known as one of the world’s major grain suppliers. When food supplies are disrupted, the consequences are quite clear: food prices skyrocket. As a result, this has had a serious impact on European countries, which rely heavily on food imports from Ukraine. This instability has sparked fears of a food crisis in several regions of Europe, even sparking protests in some cases. On the other hand, this war also accelerated the transition to renewable energy. European countries are accelerating investment in renewable energy projects to reduce dependence on Russian fossil energy. The European Union has planned to accelerate the implementation of green policies as a long-term step to create energy independence. Europe’s long-term economic sustainability also depends on political and social balance. Rising social tensions due to inflation and the energy crisis may lead to protests and public dissatisfaction. Citizens may question the government’s steps in handling the crisis, which has the potential to create political instability. In addition, the domino effect of this conflict is also being felt in financial markets. Increased uncertainty causes significant fluctuations in stocks and bonds. Investors are likely to become more cautious, which adds challenges to economic recovery. This uncertainty has led some companies to delay their expansion plans, potentially hampering short-term growth. With the various challenges that exist, it is important for European countries to collaborate and act quickly in dealing with the negative impacts of the Russian-Ukrainian war. Effective and integrated policies are needed to ensure economic and social stability across the continent.