This study evaluates the role of unmanned aerial vehicles (UAVs) in demining operations and environmental monitoring under wartime and post-conflict conditions. A structured literature review (2015–present) assessed UAV-enabled detection, mapping, and environmental sensing capabilities. The results indicate that UAVs significantly enhance reconnaissance efficiency, reduce suspected hazardous areas, and improve safety, yet cannot independently meet humanitarian clearance standards. While wartime use prioritises rapid risk mitigation, post-conflict deployment supports systematic clearance, environmental monitoring, and land restoration. The study highlights a gap in doctrinal integration and underscores the need for standardised UAV-based demining and environmental workflows.