After the dissolution of the Soviet Union, Ukraine found itself in possession of a substantial nuclear arsenal. However, due to economic constraints and concerns about international relations, Ukraine made the decision to give up its nuclear weapons. The Budapest Memorandum of 1994 assured Ukraine of security guarantees, but these were called into question when Russia intervened in Crimea and backed separatist movements in Ukraine. The current conflict between Russia and Ukraine underscores the challenges Ukraine faces in terms of security without the nuclear deterrent it once had. The vulnerabilities of Ukrainian security are now being exposed in the ongoing crisis. This situation serves as a stark reminder of the complex geopolitical landscape in the region and the importance of international agreements in ensuring peace and stability.