 One of the five battle groups was the 1st Airborne Battle Group, 501st Infantry.Its first commander was COL Harry Kinnard, who had been a member of the World War II regiment and also G-3 of the division from the Netherlands.As to matters on lineage, on 25 April 1957, the 501st Regiment ceased to exist as a tactical unit and was re-designated as the 501st Infantry, a parent regiment under the combat arms regimental system.