At present, the prohibition or non-recognition of dual nationality is on the decline. In the case of Ukraine, beyond global phenomena, both historical events and the war situation indicate this trend. Since the outbreak of the war, the already sizeable Ukrainian diaspora has increased exponentially. If Ukrainian citizens living abroad lose their citizenship as a result of Ukrainian legislation, it would severely damage their connection to Ukraine and may jeopardise their return. As refugees, they can usually obtain citizenship in other countries through preferential naturalisation, but as foreign nationals, they lose their right to return to Ukraine. It is to be hoped that Ukraine will soon be able to live in peace and begin rebuilding not only the state but also the nation, addressing its demographic challenges. For this purpose, it is essential to maintain and strengthen ties with Ukrainians living abroad and, once peace is restored, facilitate their return home. The existing Ukrainian laws do not assist individuals who have acquired Russian citizenship in areas of Ukraine occupied by Russia. Additionally, neighbouring countries Romania and Hungary have preferential naturalisation rules, which may result in applicants for new citizenship losing their Ukrainian citizenship. This course of action is not only disadvantageous for relations with neighbouring countries but also for individuals and Ukraine itself. Furthermore, the Ukrainian military hosts a significant number of foreign soldiers, for whom Ukraine seeks to establish a legal framework and foster relations. This further necessitates a revision of the prevailing citizenship regulation. In conclusion, given the particular circumstances Ukraine is currently experiencing, it would be prudent for the nation to consider revising its citizenship policy. Such a revision would benefit individuals, the state, and Ukraine’s international relations.