VietnamGear.com

Vietnam War Dictionary

Igloo White

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.