Ukraine's war robots spare soldiers some dangers, but human support crews still risk their lives
Unmanned ground vehicles take on firing, reconnaissance and logistics, yet troops may need to work near the front and some companies send staff there to maintain and repair them
Ukraine is fielding a growing fleet of unmanned ground vehicles to replace soldiers in the most dangerous battlefield roles. But troops may still need to venture closer to the fighting to change batteries, reload ammunition, fix punctures and troubleshoot faults, while some companies send mobile teams to front-line regions to keep robots running.