After the dissolution of the Soviet Union, Ukraine found itself in possession of a substantial nuclear arsenal. However, financial constraints and geopolitical considerations led to Ukraine voluntarily giving up its nuclear weapons. The 1994 Budapest Memorandum provided assurances of security, but these proved to be insufficient when Russia invaded Crimea and backed separatist movements in Ukraine. The conflict between Russia and Ukraine underscores the security challenges faced by Ukraine in the absence of nuclear deterrence. The vulnerability of Ukrainian security has become a pressing issue in recent years. The need for robust security measures to protect Ukraine’s sovereignty and territorial integrity has become increasingly apparent. The ongoing tensions between Russia and Ukraine serve as a stark reminder of the complex geopolitical landscape in Eastern Europe. It remains to be seen how Ukraine will navigate these challenges and ensure its security in the face of continued aggression from Russia.