Background: Deep in the bowels of Cheyenne Mountain is a city-like military complex that once served as North American Aerospace Defense Command (NORAD) 's center.

背景材料：在夏延山的深处像一座城市一样的军事综合隧道，一度作为北美防空司令部(NORAD)的中心。

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The authors say China will also aim to achieve air superiority by destroying or suppressing enemy ground-based air defense systems and air defense command systems.

作者说，中国也通过摧毁或者抑制敌军地空防御系统或者空防指挥系统来达成其空优态势。

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Those seeking clarity on the "command and control" vs. "Agile" debate are likely to enjoy examining the content at the Department of Defense Command and Control Research Center .

如果想了解“命令与控制”和“敏捷”之争的更多细节，可以去看看 国防部命令与控制研究中心网站上的内容。

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During his military career, he briefly served as commanding general of the U.S. Army Space and Strategic Defense command.

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It went on to say Mitnick, as a teenager, had hacked the North American Aerospace Defense Command (Norad), foreshadowing the movie War Games.

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On that autumn morning, James Hill was the Commander-in-Chief of NORAD, which is the joint Canadian-US North American Aerospace Defense Command.

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