(i) Use of modern war equipments : Thousands of US War troops arrived in Vietnam with heavy weapons and tanks, airships etc. (ii) Use of Chemical weapons and gases : These War troops used all kind of chemical weapons Napalm, Agent Orange, and phosphorous bombs which destroyed many cities, villages and decimated jungles. (iii) War and Women : War provided an opportunity to Vietnamese women to come out of the houses. In the 1960s, photographs in magazines and journals showed women as brave fighters. There were pictures of women militia shooting down planes. They were portrayed as young, brave and dedicated. (iv) Women as workers : Women were represented not only as warriors but also as workers : they were shown with a rifle in one hand and a hammer in the other. Whether young or old, women began to be depicted as selflessly working and fighting to save the country. As casualties in the war increased in the 1960s, women were urged to join the struggle in larger number. Many women responded and joined the resistance movement. They helped in nursing the wounded, constructing underground rooms and tunnels and fighting the enemy.