After racing across Russian fields in an American Stryker armored fighting vehicle this month, the six-man Ukrainian assault team dismounted in a tree line about 700 yards from the enemy’s trenches and waited for the order to attack.

When it came, Afonya, a 40-year-old construction worker drafted into the Ukrainian military just two months ago, said the Ukrainian soldiers were met with a hail of gunfire as soon as they moved from their hastily dug foxholes. He was hit in the hand by a bullet that shattered a bone.

Three members of the assault team were injured and pulled back while the other three waited for reinforcements to resume the attack in the Kursk region of Russia.

“There were too many of them,” Afonya said in an interview at a hospital in eastern Ukraine, where he was recovering after being evacuated.

More than a month after Kyiv launched its incursion into Kursk — sweeping across nearly 500 square miles and capturing around 100 Russian towns and villages in a few short weeks — Russian resistance is stiffening, Ukrainian soldiers interviewed near the border with Russia said as they moved to and from the front last weekend.