A new Agence France-Presse video shows a group of young Ukrainian troops making drones and bombs from a basement close to the front lines.
A group of men in fatigues are working on small, remotely-pilotedrobots. The devices were found from damaged planes.
The men in the video are described as a group of 20-somethings, while the soldier in the video is tasked with packing the robot with explosives.
They are supposed to make it move. He told the outlet that his job was to make it explode so that it did the most damage to the enemy.
The bombs made by the team were inscribed with personal messages to their Russian enemies, such as "happy birthday" and "today is a Wednesday, man."
Large swathes of territory have been wrested from the Russians by the Ukrainians.
The skies over the highly-contested eastern Donbas have been the site of a fierce aerial battle with the Ukrainians relying on drones created by its fighters to be flown in combat.
Thousands of drones have been sent toUkraine by the US. Phoenix Ghosts can be launched by front-line troops for single attacks.