original_query: What were some names used to refer to the McNamara Line?
query: What were some names used to refer to the McNamara Line?
answer: The McNamara Line was also known as the Great Wall of Vietnam, McNamara's Wall, McNamara Barrier, Electric Fence, and Alarm Belt.  Project Dye Marker, Illinois City, Muscle Shoals, and Igloo White were also used.