Denys was born and lived in the village of Mykulyntsi in the Vinnytsia region.
In the first days of the great war, in February 2022, he volunteered. He served in the 61st Separate Mechanized Steppe Brigade. He fought in Mykolaiv region, liberated Kherson, defended Soledar and Pokrovsk, where he was seriously wounded.
Denys fought in the Sumy region and in the Kursk region, later transferred to the rifle battalion of the Iron Brigade.
“His bravery, justice and humanity were respected,” the second friend adds. “Both soldiers and officers listened to his words.
According to the unit commander, Sergeant Kotlyarov was a leader in the team. As a squad leader of a machine-gun platoon, he skillfully led his subordinates in battle. The unit still tells the recruits how Denys and his brothers, having shown ingenuity and desperation, captured a prisoner.