The war in Ukraine that began in February 2022 has changed the geopolitical landscape dramatically, impacting global stability and creating new challenges. This conflict not only affected Ukraine and Russia, but also spread to many other countries and international organizations. One of the direct impacts is the energy crisis that hit Europe. Russia, as one of the largest gas suppliers, reduced its gas supplies, forcing European countries such as Germany and Italy to look for alternatives. Russia’s heavy dependence on energy creates uncertainty and skyrockets energy prices, triggering severe inflation around the world. In addition, this war also exacerbates uncertainty in global supply chains. Ukraine is one of the main producers of wheat and corn. With shipping cut off from Ukrainian ports, many countries, especially in the Middle East and Africa, are experiencing serious food shortages. As a result, global food prices are rising and could lead to social unrest in some of the most vulnerable countries. From a political perspective, this war strengthened alliances such as NATO, which united to confront the Russian threat. NATO member countries are strengthening defense budgets and increasing arms shipments to Ukraine. This dynamic has the potential to trigger a new arms race and increase tensions with non-NATO countries. Meanwhile, Russia has also strengthened its ties with countries such as China and Iran in an effort to offset pressure from the West. These developments rocked financial markets and created economic uncertainty around the world. Investors are concerned about a potential global recession that could occur as a result of inflation and rising energy costs. Additionally, the war in Ukraine could be a signal for other countries with territorial ambitions to take similar actions, creating further instability in various regions. The war in Ukraine has also triggered an unprecedented wave of refugees. Data shows millions of Ukrainians fleeing to other European countries. This adds pressure to the social and economic systems of host countries, which must integrate refugees into their societies. Complex diplomatic negotiations regarding the refugee issue are a challenge for European countries. In this context, the world is seeing a shift in foreign policy, with countries starting to formulate new strategies to reduce their dependence on fossil energy and accelerate the transition to renewable energy sources. Massive investment in green energy could be one of the positive outcomes of this crisis, although the road to that transition is strewn with obstacles. The war in Ukraine continues to be in the spotlight and tests the resilience of the international system. The world’s response to Russian aggression will influence future international norms and may serve as a guide to the actions of other states. The long-term impact of this conflict remains difficult to predict, but it is clear that global stability is threatened in the short term, raising challenges that will require strong international cooperation to overcome.