| 词条 | 639th Aircraft Control and Warning Squadron |
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|unit_name= 639th Aircraft Control and Warning Squadron | image= 639th Aircraft Control and Warning Squadron.png | image_size = 250 |caption= Emblem of the 639th Aircraft Control and Warning Squadron |dates= 1952-1963 |country= United States |allegiance= |branch= {{air force|USA}} |type= General radar surveillance |role= |size= |command_structure= |current_commander= |garrison= |ceremonial_chief= |colonel_of_the_regiment= |nickname= |patron= |motto= |colors= |march= |mascot= |battles= |anniversaries= |decorations= }} 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
Inactivated on 1 July 1963Assignments
References{{Portal|United States Air Force|Military of the United States}}{{Air Force Historical Research Agency}}
External links{{Aerospace Defense Command|state=collapsed}}{{Use dmy dates|date=June 2017}} 2 : Radar squadrons of the United States Air Force|Aerospace Defense Command units |
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