Purpose This paper aims to provide a comprehensive analysis of the legal status and mechanisms involved in the receipt and registration of humanitarian aid by Ukrainian defense forces. The study aims to highlight the importance of proper control and accountability by military unit commanders, addressing the challenges and responsibilities associated with the management of humanitarian aid during the initial phase of the full-scale Russian invasion. Design/methodology/approach This study uses a qualitative approach, analyzing legal documents, organizational procedures and case studies related to the receipt and registration of humanitarian aid by Ukrainian defense forces. The research involves examining the actions of military unit commanders, identifying gaps in existing legislation and proposing improvements based on observed challenges and best practices. Findings The study finds that the legal status and proper accounting of military property received as humanitarian aid are critical for ensuring its effective use. It identifies significant challenges in the organizational and legal mechanisms, including issues of non-receipt and non-registration of aid. The findings emphasize the need for improved legislation, better control measures and increased accountability of military unit commanders to enhance the efficiency and transparency of humanitarian aid management during conflict situations. Research limitations/implications The research is primarily limited by the availability and reliability of data due to the ongoing conflict, which may affect the comprehensiveness of the analysis. Additionally, the dynamic nature of the legal and organizational environment during wartime poses challenges in maintaining updated information. Future studies could benefit from longitudinal data and comparative analysis with other conflict zones to enhance the robustness and applicability of findings. Practical implications This study provides actionable recommendations for improving the legal framework and organizational processes related to humanitarian aid in military contexts. It offers guidance for military unit commanders on best practices for receiving, accounting and preserving aid. The findings aim to inform policymakers and military officials to ensure more effective and transparent management of humanitarian resources, ultimately enhancing the operational capabilities of the Ukrainian Armed Forces. Social implications By addressing the legal and organizational challenges in managing humanitarian aid, this research contributes to the overall welfare of military personnel and affected civilians. Ensuring the effective use of humanitarian aid can improve the living conditions and morale of soldiers and support communities impacted by the conflict. The study also highlights the importance of accountability and transparency, fostering trust among international donors and encouraging continued support for humanitarian efforts in Ukraine. Originality/value This study provides a novel and comprehensive examination of the legal mechanisms and organizational practices involved in the receipt and registration of humanitarian aid by the Ukrainian defense forces during the initial phase of the Russian invasion. By focusing on the unique challenges faced in this conflict, the research offers original insights into the legal status of military property received as aid and the accountability of military commanders. The findings contribute valuable recommendations for policy and practice, aiming to enhance the effectiveness and transparency of humanitarian aid management in conflict situations.