In the 1950s, with the Cold War progressing and tension mounting in the West, a study group headed by the Massachusetts Institute of Technology recommended that a Distant Early Warning (DEW) Line be built across the Canadian and U.S. Arctic as well as Greenland to address the threat of Soviet bomber attacks. After the design and testing of various prototypes in Alaska and Illinois, construction of the DEW Line started in earnest in December 1954. Two years and eight months later in July 1957, 63 DEW Line sites were completed and control turned over to the U.S. Air Force. The construction activities at each of these stations included radar equipment, communication equipment, housing, roads, storage tanks, and, for the main or intermediate stations, air fields and aircraft hangers--all in some of the most uninhabitable regions of the Arctic. An estimated 25,000 people worked on or planned the sites for a rumored cost of dollar750 million.
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机译：在1950年代，随着冷战的进行和西方的紧张局势加剧，麻省理工学院（Massachusetts Institute of Technology）领导的研究小组建议在加拿大和美国的北极地区以及格陵兰岛上建立远距离预警（DEW）线路，苏联轰炸机袭击的威胁。在对阿拉斯加和伊利诺伊州的各种原型机进行设计和测试之后，DEW线于1954年12月正式动工。两年零八个月后的1957年7月，完成了63个DEW线基地的建设，并将控制权移交给了美国空军。这些站点中的每个站点的建筑活动包括雷达设备，通信设备，房屋，道路，储罐，以及主站点或中间站点的飞机场和飞机吊架-全部位于北极最不宜居住的地区。据估计，有25,000人在这些站点上工作或计划建设，据传成本为7.5亿美元。
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