This is quite interesting, and shows how desperate things must be. No water purification or bulk distribution on land because of interdiction by Ukraine, so they are resorting to free dropping micro amounts using drones. Incredibly inefficient but probably better than nothing….
Video
Ukrainian FPV drones attack every Russian vehicle and every visible soldier within their range, making forward resupply a desperate business.
Bottles of water are encased in polyurethane foam to survive dropping by drones to Russian forward positions.