The defeat of the United States in the Vietnam War can be attributed to several factors, including the effective guerrilla tactics of the Viet Cong, limited strategic objectives, domestic opposition and public disillusionment, logistical challenges and attrition, diplomatic isolation, and the resilience and nationalism of the Vietnamese people. These factors combined to undermine the US military effort and ultimately led to withdrawal from Vietnam, marking a significant loss in American foreign policy and military history.
