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| partof = | code = | built = 1951-1953 | builder = | materials = | height = | used = | demolished = | ownership = U.S. Government | condition = | controlledby = | garrison = | commanders = | occupants = | battles = | events = | footnotes = See also: }} The Raven Rock Mountain Complex (RRMC) is an American military installation with an underground nuclear bunker near Blue Ridge Summit, Pennsylvania, at Raven Rock Mountain that serves as an "underground Pentagon" (colloq.).〔"Life on the Newsfronts". ''Life''. March 1, 1954. p. 40.〕 The bunker has emergency operations centers for the United States Army, Navy, and Air Force. ==Description== The installation's largest tenant unit is the Defense Threat Reduction Agency, and RRMC communications are the responsibility of the 114th Signal Battalion.〔 (dated copy at archive.org)〕 The facility has 38 communications systems, and the Defense Information Systems Agency provides computer services at the complex. Additional names for the installation are Raven Rock Military Complex, National Military Command Center Reservation (NMCC-R), Backup Pentagon", Site R, or "The Rock". 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「Raven Rock Mountain Complex」の詳細全文を読む スポンサード リンク
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