The team of soldiers had been out of their Ukrainian armored personnel carrier for only a matter of minutes when the tree line in front of them erupted in Russian gunfire. The dozen or so soldiers, sent to reinforce a trench, found themselves pinned down for hours.

"Never seen that much fire, from so many positions,” a soldier recounted in a mission report obtained by The New York Times.

One soldier fighting for Ukraine was killed and nine were wounded in the battle, which took place in March near the Ukrainian city of Bakhmut. Russian troops, the report said, showed a "high level of skill and equipment.”