After the dissolution of the Soviet Union, Ukraine found itself in possession of a substantial nuclear arsenal. However, due to financial constraints and geopolitical concerns, Ukraine made the decision to disarm itself of these nuclear weapons. The Budapest Memorandum of 1994 provided security assurances to Ukraine, but these guarantees were called into question when Russia took over Crimea and backed separatist movements within Ukraine. The current conflict between Russia and Ukraine underscores the vulnerabilities that Ukraine faces in terms of security without the backing of nuclear deterrence. The situation serves as a stark reminder of the complex geopolitical landscape in Eastern Europe.