After the fall of the Soviet Union, Ukraine found itself in possession of a substantial nuclear stockpile. However, due to financial constraints and geopolitical concerns, Ukraine made the decision to give up its nuclear weapons. The 1994 Budapest Memorandum was supposed to provide security assurances to Ukraine, but these promises were called into question when Russia annexed Crimea and backed separatist movements within Ukraine. The current conflict between Russia and Ukraine underscores the security challenges faced by Ukraine without the nuclear deterrence it once possessed. The relinquishment of Ukraine’s nuclear weapons has left the country vulnerable in the face of aggression from its neighbors. The situation serves as a stark reminder of the complex relationship between nuclear disarmament and national security. The international community continues to monitor the developments in the region as tensions remain high. The need for reliable security guarantees for countries like Ukraine is once again in the spotlight as the geopolitical landscape continues to evolve.