Final answer:
American soldiers used Agent Orange in Vietnam to defoliate the jungle and make it harder for the enemy to hide.
Step-by-step explanation:
American soldiers used Agent Orange during the Vietnam War to defoliate the dense forest and jungle where the Vietcong and North Vietnamese Army (NVA) were hiding. This herbicide defoliant was sprayed over large areas, making it harder for the enemy to hide from aerial spotters. The use of Agent Orange was part of the United States strategy to counter the guerrilla tactics of the Vietcong and gain a military advantage.