Language is a cornerstone of cultural identity, yet many of the world's languages are at risk of disappearing, either historically or as a result of deliberate actions by aggressive neighboring states, if not appropriately addressed. This paper examined worldwide endeavors to safeguard endangered languages and the cultural customs interwoven with them, using a case study of Ukraine and Russia. By conducting quantitative and qualitative analyses of the obtained data, the study focused on the case study design, based on document analysis, semi-structured interviews, and structured surveys. The findings highlighted the key successes in language revitalisation, mainly focusing on educational initiatives and technology-based solutions. Efforts such as community-led language schools, language documentation projects, and digital platforms have demonstrated potential in maintaining Ukrainian as a presently endangered language in territories militarily occupied by Russia and previously annexed areas, providing direct communication channels to counter an aggressor's objectives. Additionally, the role of government policies and international organisations in supporting language preservation was analysed, revealing how collaborative approaches can foster linguistic and cultural resilience. Significant challenges were identified. These challenges encompassed inadequate funding and limited local and global community engagement, and the complex dynamics of cultural assimilation because of fear and threat to life in the occupied lands. Moreover, the impact of language extinction on the cultural survival of minority groups (those few Ukrainian speaking or bilingual – Ukrainian and Russian, speaking people with the core values of the Ukrainian culture and identity) is profound, often leading to a loss of unique worldviews, oral traditions, and identity. The paper concluded with recommendations for future initiatives in language revitalisation, emphasising the need for holistic approaches that integrate the cultural understanding, technology, and community empowerment. It was contended that by tackling these issues, stakeholders can play a role in preserving not just languages but also the diverse tapestry of cultures they embody.