During the years of severe war, hundreds of painters joined the army to fight against the enemy and sketched the most violent moments of the struggle for national independence and reunification. Heaven Gate - 1973. Many of the sketches were created on pieces of old newspapers, packs of cigarette, using only charcoal and half baked brick. Many painters laid down their lives right after finishing a sketch. Some of the sketches have been preserved as evidence of a glorious time when the human dignity and boundless sacrifice for national independence was upheld. Vietnam Pictorial introduces to readers some sketches by painter Le Tri Dung who participated in the most severe battlefield in 1972. An anti-tank trench at Thanh Hoi post, Cua Viet - 1973. During break time in Quang Tri -1973. A group of three guerrillas in Trieu Van, Trieu Phong, Quang Tri discuss plans to fight against the enemy’s invasion - 1973. A Sau - March 1972.   Story by Truong Huu Bien