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Mila, the school principal in Marinka, sits at her desk behind sandbags lining the windows in her office.
"They got so adjusted to the situation ... They hear the sounds of shelling and shooting, and they just don't care that they could get hurt."
The war in eastern Ukraine, which has killed more than 10,000 people and wounded more than 24,000, will turn four years old next April.
After a series of failed ceasefires, the conflict has mostly devolved into stagnant trench warfare, where Ukraine and Russian-backed separatists often exchange light artillery and sniper fire from a distance.
Shelling and small arms fire have become regular background noise along the 250 mile long front lines, especially in hotspots like Avdiivka or Marinka. Misfires still kill and wound civilians.
In March, we spoke with multiple children and adults living in Marinka about how this prolonged conflict has effected the children.
Here's what they said: