The Balkans deploys bees and drones in new efforts to ramp up mine clearing Hundreds of thousands of mines planted during the Balkans war remain unexploded 3 April 2021 • 3:16pm A team from Bosnia and Herzegovina and Croatia have come up with a way of using drones to monitor the bees Drones working alongside honey bees could be deployed to clear landmines and unexploded bombs in the Balkans. Bees are known to be able to detect landmines after scientists discovered that they could sniff out explosives. But sending people into mine packed areas to track the bees' movements is understandably risky. Researchers from Bosnia and Herzegovina and Croatia are now flying drones to film the bees, uploading the footage to a computer and using machine learning to plot their movements.