After the fall of the Soviet Union, Ukraine inherited a significant nuclear stockpile. However, due to financial burdens and geopolitical risks, Ukraine decided to relinquish its nuclear weapons. The 1994 Budapest Memorandum, which promised security guarantees, proved unreliable when Russia annexed Crimea and supported separatists in Ukraine. The current Russia-Ukraine conflict underscores the vulnerabilities of Ukrainian security without nuclear deterrence. The decision to give up its nuclear arsenal has left Ukraine exposed to external threats, raising concerns about its ability to defend itself. The ongoing conflict has brought attention to the importance of nuclear deterrence in safeguarding national security. The situation in Ukraine serves as a cautionary tale for other countries considering disarmament. Despite efforts to secure guarantees through international agreements, Ukraine’s security remains precarious. The country now faces the challenge of navigating a complex geopolitical landscape without the protection of nuclear weapons. As tensions continue to escalate in the region, the debate over the role of nuclear deterrence in ensuring peace and security has been reignited.