Always on the move, members of the Ukrainian army's mobile tank repair unit travel along the Donbas frontline in the country's east, responding to radio calls from battle groups requesting regular maintenance, a quick fix or a breakdown recovery.
Fielding a constant stream of callouts - to a broken caterpillar track on a T-72 tank, for example, or a dead battery in an armoured personnel carrier - the mechanics can fix the vehicle on the spot or tow it away for more serious repairs.
"We are like nomads - we move from one place to another," said Serhii, a 23-year-old mechanic and driver of the recovery vehicle.
