sentences:  He then trained as a paratrooper and attended Cavalry School in Saumur, France.As a captain, he was made the commanding officer of the VNA's Mobile Task Force (GM 2) in Ninh Giang in northern Vietnam, and after graduating at the top of a Military Staff Training Course in Hanoi, was promoted to the rank of major and put in command of the forces in Duyên Hải, in the northern coastal province of Thái Bình as a battalion commander.In 1952, he was made a lieutenant colonel as appointed to command the 31st Tactical Group (GM 31), based in the province of Hải Dương but also covered the adjoining provinces of Nam Định and Ninh Bình.