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The 639th Aircraft Control and Warning Squadron is an inactive United States Air Force unit. It was last assigned to the Sault Sainte Marie Air Defense Sector, Air Defense Command, stationed at Lowther Air Station, Ontario, Canada. It was inactivated on 1 July 1963. The unit was a general surveillance radar squadron providing for the air defense of North America. Lineage * Activated as 639th Aircraft Control and Warning Squadron, 1 December 1956 : Inactivated on 1 July 1963 Assignments * 37th Air Division, 1 December 1956 * 30th Air Division, 1 April 1959 * Sault Sainte Marie Air Defense Sector, 1 April 1960 – 1 July 1963 Stations * Truax Field, Wisconsin, 1 December 1956 * Lowther Air Station, 1 July 1957 – 1 July 1963 ==References== * Cornett, Lloyd H. and Johnson, Mildred W., ''A Handbook of Aerospace Defense Organization 1946 - 1980'',() Office of History, Aerospace Defense Center, Peterson AFB, CO (1980) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「639th Aircraft Control and Warning Squadron」の詳細全文を読む スポンサード リンク
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