Junior Sergeant Oleksiy Tretiak, born April 10, 1997, was killed on October 26, 2024, near Novodmytrivka in Ukraine's Donetsk region. He served as a vehicle commander in the 35th Separate Marine Brigade.

Tretiak had previously sustained injuries but returned to his unit. He was posthumously awarded the Order For Courage III Class. He is survived by his mother, stepfather, father, and stepmother.