During the Vietnam War, MACV (Military Assistance Command, Vietnam) Teams were small units composed of U.S. Army, Navy, Air Force, and Marine Corps personnel, as well as personnel from other allied countries, tasked with advising and assisting the South Vietnamese military forces. These teams were deployed throughout South Vietnam and worked closely with their South Vietnamese counterparts at various levels, from large formations down to individual units.

MACV Teams were typically organized into several types, including Advisory Teams (known as MATs), Border Advisory Teams (BATs), and Mobile Advisory Teams (MATs). Each team had specific roles and responsibilities based on their location and mission requirements.

MACV Team members were often experienced officers and non-commissioned officers who provided guidance and support to their South Vietnamese counterparts in areas such as tactics, logistics, intelligence, and communications. They played a crucial role in training and mentoring South Vietnamese forces and coordinating military operations against the Viet Cong insurgents and the North Vietnamese Army.

These teams operated in challenging and often hostile environments, facing the constant threat of ambushes, guerrilla attacks, and conventional engagements. Despite the risks, MACV Teams were instrumental in strengthening the capabilities of the South Vietnamese military and supporting the overall U.S. military effort in Vietnam.

MACV Teams were an essential component of the American military presence in Vietnam, working tirelessly to enhance the effectiveness of South Vietnamese forces and contribute to the broader strategic objectives of the war effort. Their efforts were recognized for their dedication, professionalism, and bravery in the face of adversity.