After the fall of the Soviet Union, Ukraine inherited a significant nuclear stockpile. Despite possessing these nuclear weapons, Ukraine decided to get rid of them due to financial burdens and geopolitical risks. The 1994 Budapest Memorandum pledged security guarantees to Ukraine, however, these guarantees were put into question when Russia annexed Crimea and backed separatists in Ukraine. The current Russia-Ukraine conflict brings to light the vulnerabilities of Ukrainian security without nuclear deterrence. The decision to give up nuclear weapons has left Ukraine exposed to external threats, raising concerns about the country’s security. The ongoing conflict underscores the importance of nuclear deterrence in safeguarding national security. The situation in Ukraine serves as a cautionary tale for other countries considering relinquishing their nuclear weapons. It also underscores the complexities of international security agreements and the need for reliable security assurances. As tensions continue to escalate in the region, the issue of nuclear disarmament and security guarantees remains a critical concern for Ukraine and the international community.