Vietnam War Dictionary
Originally the name given to the technology used in the Laotian (Muscle Shoals) section of the McNamara Line
, the term ‘Igloo White’ came to represent the electronic infiltration barrier program as a whole. Igloo White consisted of 20,000 battery powered acoustic and seismic sensors planted along the Ho Chi Minh Trail
, the aircraft that relayed the signals and the Infiltration Surveillance Center in Thailand.