 He was promoted Brigadier General).In the middle of June, 1971, he was ordered to hand over the position of the Governor-General of Phong Dinh Sub-division to Colonel Chương Dzềnh Quay (former Commander of the 21st Infantry Division).He was then assigned to the position of 5th Infantry Division Commander, replacing Major General Nguyễn Văn Hiếu and transferred to III Corps Command as Deputy Corps Commander.