After the dissolution of the Soviet Union, Ukraine found itself in possession of a substantial nuclear arsenal. However, due to financial constraints and geopolitical concerns, Ukraine made the decision to give up its nuclear weapons. This move was in line with the 1994 Budapest Memorandum, which provided Ukraine with security assurances. Unfortunately, these assurances were called into question when Russia annexed Crimea and backed separatist movements within Ukraine. The current conflict between Russia and Ukraine underscores the importance of nuclear deterrence in ensuring Ukrainian security. The vulnerabilities faced by Ukraine without nuclear weapons have been starkly exposed in this ongoing crisis. The implications of Ukraine’s decision to disarm continue to be felt as the country navigates its relationship with Russia and strives to maintain its sovereignty.