After the dissolution of the Soviet Union, Ukraine was left with a substantial nuclear arsenal. However, the country made the decision to give up its nuclear weapons due to financial constraints and geopolitical concerns. The 1994 Budapest Memorandum provided security assurances to Ukraine, but these guarantees were called into question when Russia seized 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 protection of nuclear deterrence. The vulnerability of Ukrainian security has been exposed, raising concerns about the country’s defense capabilities. The aftermath of Ukraine’s nuclear disarmament serves as a cautionary tale about the complexities of international diplomacy and the importance of ensuring reliable security arrangements.