'This long-range radar "line" was established in 1957 to warn the U.S. & Canada of air attack from over the North Pole'
DEW (Distant Early Warning) Line
D IN HISTORY: This long-range radar line was established in 1957 to warn the U.S. & Canada of air attack from over the North Pole
This long-range radar "line" was established in 1957 to warn the U.S. & Canada of air attack from over the North Pole
This long-range radar "line" was established in 1957 to warn the U.S. & Canada of air attack from over the North Pole
"D" IN HISTORY
DEW Distant Early Warning Line
"D" IN HISTORY