Infantry Units Drone Guide

By Association for Drones

Infantry units operate in environments where information, mobility and communications can change quickly. Soldiers may be working across urban areas, forests, open terrain, mountains or remote regions, often with limited visibility of what lies beyond nearby terrain or structures. Drones can provide an additional aerial perspective that supports planning, observation, communications and logistics without requiring personnel to physically enter every area first. Modern infantry-support drones range from small hand-launched quadcopters to larger fixed-wing and hybrid VTOL systems. Depending on the platform, they can carry high-resolution cameras, thermal sensors, mapping payloads, communications equipment or lightweight logistics packages. Their primary value is providing information from above and extending the unit’s ability to observe, map and communicate across a wider area. Drones should be viewed as one component of a broader military system rather than as a replacement for soldiers, crewed aviation, ground reconnaissance or established command structures. Their value comes from helping personnel understand terrain, monitor changing conditions, maintain communications and move selected supplies more efficiently. ## **Situational Awareness** Situational awareness is one of the most important applications for drones supporting infantry units. Personnel operating at ground level may have only a limited view of the surrounding environment, especially in built-up areas, forests or broken terrain. A drone can provide an elevated perspective that helps authorised commanders understand the wider area. Roads, buildings, open ground, obstacles and terrain features can be viewed together, giving teams a more complete picture before personnel move through the area. This can be particularly useful when conditions are changing quickly and existing maps or satellite imagery are no longer current. ## **Local Reconnaissance** Small drones can support local reconnaissance by providing updated imagery of terrain and infrastructure. Rather than relying only on older aerial photographs or maps, units can collect recent information from a specific area. The value is primarily informational. Drones can help identify changes in roads, damaged bridges, blocked routes, flooded areas or altered infrastructure. This allows planners to make better-informed decisions without immediately sending personnel into every location. The aircraft complements conventional reconnaissance rather than replacing it. ## **Terrain Awareness** Terrain strongly influences infantry mobility. Hills, valleys, rivers, forests, buildings and other features can affect movement and communications. Drone imagery can provide a broad view of these features and help personnel understand the physical environment. Photogrammetry or LiDAR can also create more detailed three-dimensional terrain models when required. These datasets can support planning, training and logistics without relying solely on traditional two-dimensional maps. ## **Route Assessment** Drones can support general route assessment by showing whether roads, tracks and crossings remain usable. This can be particularly valuable after storms, flooding, earthquakes or infrastructure damage. Aerial imagery can reveal blocked roads, collapsed bridges, damaged access routes or difficult terrain. Ground teams can then verify conditions before vehicles or personnel are committed. This has clear military value but also applies to disaster-response and humanitarian operations. ## **Urban Environment Mapping** Urban environments are particularly complex because buildings create restricted visibility and rapidly changing spatial conditions. Drone mapping can provide an updated overview of streets, buildings, damaged structures and access routes. Three-dimensional models can help teams understand how different parts of the urban environment relate to one another. This information can support planning, communications and general situational awareness while reducing reliance on outdated maps. ## **Rural and Remote Operations** Remote terrain can make conventional observation and communication difficult. Units operating across large rural areas may be separated by long distances and poor road networks. Longer-range drones can provide a broader aerial picture and help teams understand changes across the surrounding area. Fixed-wing or hybrid VTOL platforms are particularly useful where endurance and coverage are more important than hovering. For remote units, drones can therefore provide both information and logistics support. ## **Thermal Imaging** Thermal cameras provide an additional information layer by detecting differences in infrared radiation associated with surface temperature. They can support authorised observation in darkness or low-light environments and may help identify warm vehicles, equipment or people under suitable conditions. However, thermal imagery can be affected by weather, terrain, vegetation and background temperatures. It should therefore be interpreted by trained personnel and used alongside conventional imagery rather than as a standalone source of information. ## **High-Resolution RGB Imaging** Conventional RGB cameras remain among the most useful drone sensors. They provide clear visual information about terrain, infrastructure, roads and environmental conditions. Optical zoom can allow operators to examine distant areas while maintaining greater stand-off distances. The combination of wide-area imagery and zoom capability can give commanders both context and detail from the same aircraft. ## **Mapping and Photogrammetry** Drones can create detailed maps using photogrammetry. The aircraft captures overlapping photographs while following a planned flight route, and software converts the imagery into orthomosaics and three-dimensional models. This can be useful where current mapping does not reflect recent changes to the environment. Damaged buildings, temporary infrastructure, new roads or altered terrain can all be incorporated into updated maps. Repeat surveys can also show how an area changes over time. ## **LiDAR** LiDAR provides three-dimensional measurements using laser pulses. A drone-mounted LiDAR system can create a dense point cloud representing terrain, buildings and vegetation. This can be particularly valuable in environments where detailed geometry is important. Under some conditions, LiDAR can also provide ground information through gaps in vegetation. The resulting data can be integrated with GIS, mapping and command systems. ## **Communications Relay** Communications can be difficult in mountainous terrain, dense urban areas or remote regions. A drone carrying an authorised communications-relay payload can act as an elevated radio or data node. The increased altitude may improve line-of-sight between separated teams. This can extend communications coverage temporarily without requiring permanent infrastructure. Longer-endurance aircraft may be particularly useful for maintaining relay capability over wider areas. ## **Temporary Network Extension** Infantry units increasingly depend on digital communications for mapping, logistics and coordination. Aerial relay systems can temporarily extend a network across difficult terrain. The drone acts as a mobile communications platform rather than a surveillance aircraft. This capability can also support disaster-response organisations when conventional communications infrastructure is damaged. ## **Mapping Communications Coverage** Drones can help support communications planning by providing terrain information and identifying potential obstacles between locations. Three-dimensional models allow planners to understand how hills, buildings and other features may affect line-of-sight communications. This can contribute to more reliable field-network planning without relying purely on theoretical maps. ## **Logistics Support** Small-scale logistics is another important d