During an enemy attack on that day, near Dak To in Kon Tum Province, Republic of Vietnam, Herda smothered the blast of an enemy-thrown hand grenade with his body to protect those around him.

He survived the blast, although severely wounded, and was subsequently promoted to specialist four and awarded the Medal of Honor for his actions.

Specialist Herda's official Medal of Honor citation reads: For conspicuous gallantry and intrepidity in action at the risk of his life above and beyond the call of duty.

Company A was part of a battalion-size night defensive perimeter when a large enemy force initiated an attack on the friendly units.

Herda has reflected great credit on himself, his unit, and the U.S. Army.Herda died in Cleveland, Ohio, on October 13, 2023, at the age of 76.