Transfusion is a highly regulated activity, and Belgium is no exception. This activity, which saves lives, especially in the case of haemorrhagic casualties, must be integrated into the medical support system for operations organised by the Defence. However, the management and delivery of sensitive products such as blood can present significant challenges in austere environments. In such cases, emergency protocols are essential for deployed medical personnel to ensure the continuity of care and make up for shortfalls. For transfusion, this involves a protocol for the collection of whole blood from donors who are fellow military personnel, who have been previously screened and deemed eligible for donation. The aim of this study is therefore to develop a Belgian protocol adapted to national needs and ambitions, which considers the associated risks. A meticulous analysis of the risks was carried out during the development of this protocol, based on a systematic review of the literature. This analysis highlighted the logistical and clinical indications for activating the protocol, as well as the risk-mitigation measures reported by the authors. The analysis revealed a convergence in the needs and identification of risks among the nations represented. In addition, the potential risks to donors were assessed. It was determined that a standard donation does not have any adverse effect on the donor's performance or ability to fulfil the mission safely. Conversely, if a standard donation is deemed insufficient, and a double donation is required, it has been demonstrated that the donor's ability to perform their duty is compromised. In such a scenario, the donor would become another patient. In the final phase of the research, the issue of whole blood conservation was addressed with the objective of ensuring the safety of the patient. When whole blood has been collected and not used because a patient who has been evacuated or who has died, it is important to have recommendations to ensure its preservation enabling it to ...