The recent development of Unmanned Aerial Vehicles (UAVs) and their potential use for casualty evacuation (CASEVAC) has exciting implications for the United Kingdom Defence Medical Services (DMS). When compared to existing technology, the unique attributes of small size, increased manoeuvrability and lack of a human pilot would be extremely useful in congested and hazardous settings. There are ethical and practical considerations to be taken into account, but harnessing the full potential of this technology may improve the chances of survival from some battlefield injuries.UAVs could be of most benefit in a congested and complex battlespace, allowing evacuation of casualties from high risk environments. In addition to CASEVAC, a UAV could be used for critical care transfers, Search and Rescue (SAR) and Humanitarian And Disaster Relief (HADR) operations. Given the vast array of potential applications and a lower risk profile compared with current CASEVAC platforms, the DMS should actively monitor the development of UAV technology and plan ahead for integration within current doctrine.