The article deals with three groups of issues, which are closely interrelated. The main problem discussed is the issue of the reconstruction, revalorisation and protection of Ukrainian monuments exposed to destruction as a result of warfare and Russia’s invasion of Ukraine. The second issue presented is the experience of Polish conservators in the area of cities destroyed during World War II. The third issue is international legislation in the field of heritage protection, which was analysed for the planned activities in the area of reconstruction and revaluation of Ukrainian monuments after the end of the war. The above-mentioned research was carried out by a Polish-Ukrainian team of heritage conservators, which seeks to be involved in the process of saving Ukrainian cultural heritage.