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1959%20NORAD%20sectors.png
1959%20NORAD%20sectors.png
http://commons.wikimedia.org/wiki/Special:FilePath/1959%20NORAD%20sectors.png
Denver Air Defense Sector
Aerospace Defense Command
P242
Q14709701-BDB0A47D-6268-457C-8979-C9FB77FC756B
Q2825671-370AEEBD-C83C-40A2-A304-348F33E5A8B5
P242
1959%20NORAD%20sectors.png
http://commons.wikimedia.org/wiki/Special:FilePath/1959%20NORAD%20sectors.png