Trương Hiếu (born as Trương Văn Hiếu) studied at the Vietnam Fine Art College from 1955-58. In 1977, he attended the Hanoi Fine Art University and graduated in 1982. He volunteered to join the People’s Army of Vietnam (also known as the North Vietnamese Army) in 1965, shortly after he married, since all the young men of his age were joining. The army sent his unit down the Hồ Chí Minh trail to the south of Vietnam, where his main role was in logistics, building roads and bridges for the following combat units. Since he was constantly on the move and often in enemy territory, he had no further communication with his wife or family until after the war ended in 1975.