After the dissolution of the Soviet Union, Ukraine found itself in possession of a substantial nuclear arsenal. However, financial constraints and geopolitical uncertainties led Ukraine to voluntarily surrender its nuclear weapons. The Budapest Memorandum of 1994 provided security assurances to Ukraine, but these proved futile when Russia seized Crimea and backed separatist movements within Ukraine. The current conflict between Russia and Ukraine underscores the challenges Ukraine faces in terms of security without the protection of nuclear deterrence. The issue raises concerns about the effectiveness of international agreements in safeguarding nations against aggression. The situation serves as a cautionary tale for countries considering disarmament and relying solely on diplomatic assurances for their security. Despite international agreements, Ukraine’s vulnerability in the face of Russian aggression is a stark reality that cannot be ignored.