World War II Pentagon construction allowed a central
military installation for the
Navy and
War Departments to communicate with
theater commands, and
CONUS air defense was based on warning data compiled by local
Aircraft Warning Corps information centers for processing
GOC observations and radar tracks to coordinate
ground-controlled interception (cf.
Battle of Los Angeles). As requested by
Gen. Spaatz, a fall 1947
AAF "war room" was established in the Pentagon ("operational early in 1948").
Strategic Air Command began using the telephonic
Army Command and Administrative Net (ACAN) in 1946 until switching to the 1949 USAF
AIRCOMNET "command teletype network" (the independent
Strategic Operational Control System (SOCS) with telephones and teletype was "fully installed by 1 May 1950".)
1950 Air Force Command Post The Air Force Command Post (AFCP) was "hastily set up" on June 25, 1950, to replace the 1948 war room when the
Korean War began. On the Pentagon's floor, the AFCP served "as a reception point for radio messages between [General]
Vandenberg and his
FEAF commanders during
Air Staff after-duty hours." After a direct telephone line was installed in mid-July 1950 between
CONAC headquarters and the
26th Air Division HQ ("the beginning of the Air Force air raid warning system"); in August "President
Truman had a
direct telephone line installed between the
Air Force Pentagon post and the
White House." Moved to a "more permanent" Pentagon facility in early 1951, the 2nd AFCP location had "a communications center [and] war room, which prepared status displays" (an "Emergency
Air Staff Actions Office [was] incorporated into the command post early in 1952"). Alternate AFCP sites in 1951 were at
Langley AFB (primary) and
Maxwell AFB (secondary). Radar tracks from the 1952
Permanent System radar stations relayed to the
Air Defense Command command center at
Ent AFB, Colorado, would be assessed, and suspicion or confirmation of attack would be relayed to the AFCP and SAC headquarters. The "Pentagon would pass the warning to the President, the Secretary of Defense, and the JCS"; and the SOCS allowed "relay [of] their orders to the combat forces".
1953 JCS Pentagon annex At the Pentagon, an annex was established by the
Joint Chiefs of Staff was "operated by the Air Force as an adjunct to the AFCP" and received reports from
Joint Coordination Centers in
Buckinghamshire, England, and
Pershing Heights, Tokyo. ADC built a new Ent AFB blockhouse in 1954 and "in August 1955 OSD approved the 'automatic' activation of the [Raven Rock] AJCC on the declaration of air defense warning or notice of surprise attack. ;1956 Raven Rock annex: In July 1956 in the Pennsylvania bunker, a joint "War Room Annex was established" and was operated by the Air Force. In 1955 the
National Security Council designated the AFCP as the "national air defense warning center", and Raven Rock's scope "was broadened in April 1957 [for] activation prior to emergency if JCS thought it necessary." In 1957
NORAD collocated command center operations in the 1954 ADC blockhouse (later into the 1963
Chidlaw Building and in 1966,
Cheyenne Mountain Complex). On July 1, 1958, the AFCP was connected to NORAD's
Alert Network Number 1, as 1 of 29 transmit/receive stations (a differing "worldwide telephone system" was complete "from national authorities to unified commanders" by December 1958.) Starting in August 1959 "with USAF assistance [the] JCS set up its own Joint War Room (JWR)" at the Pentagon. In September 1960 at the
Offutt AFB nuclear bunkers the "installation of a SAC display warning system" included 3 consoles in the
Offutt AFB nuclear bunkers (cf.
1958 Bare Mountain bunker.) On 20 October 1960, the JCS "instructed the Joint Staff to establish a Joint Alternate Command Element (JACE)" for rotating battle staffs to the AJCC for temporary duty.
1960 Joint War Room The
Joint War Room (JWR) consoles became operational in November 1960 and on December 21, the AFCP reverted to a USAF mission when its "joint and national responsibilities" ended. The September 1960
Winter Study Group and the October 1960
WSEG Report 50 recommended "interlocking the various fixed command posts" into a "coupled command system" with mobile centers and a "
bomb alarm system". The subsequent
National Defense Communications Control Center (NDCCC) opened on March 6, 1961 as part of the
National Communications System (NCS) framework "encompassing all federal assets" including approximately "79 major relay stations scattered around the globe" (cf. the NORAD
CMC's 427M
NCS).—the
Final Report of the National Command and Control Task Force (Partridge Report) was completed on 14 November 1961. After developmental cost overruns, "OSD in mid-1961 changed both
the SAGE and SAC 465L programs to pre-battle systems [and instead] approved a Post-Attack Command Control System (PACCS) for SAC and a Backup Interceptor Control (BUIC) system for ADC and NORAD". The Raven Rock JACE "was activated on 11 July 1961 under USAF Brig. Gen. Willard W. Smith [with the 5] staffs permanently stationed in Washington and an administrative section at Ft. Ritchie" (rotations began in October 1961), and development of the USAF's "separate, austere
Post-Attack Command and Control System (PACCS)" began in July 1961.
1961 NCC Task Force "The National Command and Control Task Force, headed by General Partridge, submitted its findings on 14 November 1961" (Partridge Report), which recommended "the Joint War Room become the National Military Command Center (NMCC)"—it was "to become the nerve center of a
National Military Command System" with underground and mobile alternate command centers. An 8 March 1962 JCCDG plan for a addition to the JWR was too expensive, and the group postponed NMCC planning until WWMCCS planning was completed (a concept was complete in late March.) On 2 June 1962 Secretary McNamara issued a memorandum directing that the
NMCS be put into operation, and a committee under the director of the Office of Emergency Planning recommended on 11 June 1962 that the NMCS include civilian executive departments for emergencies. The JCS approved the NMCS plan on 19 June, and the Joint Command Control Requirements Group formed in June 1962 revised the plan which SECDEF approved in early July. September refinements in the plan were approved by SECDEF on 17 October in DOD Directive S-5100.30, which conceived the WWMMCCS with five types of C2 systems with the NMCS to serve the president/SECDEF/JCS as the primary type of system and containing the NMCC, the ANMCC, 3
NEACP aircraft on 24-hour ground alert, 2
NECPA ships, "and interconnecting communications".
1962 NMCC The NMCC was begun in early 1962 (opened early October) when the JCS area with the Joint War Room was expanded from ~ to ~ by 1965 (the Pentagon's "Navy Flag Plot" coordinated the
Cuban Missile Crisis blockade.) The NMCC was initially considered an "interim" location until the
Deep Underground Command Center (DUCC) could be completed below the Pentagon (never built). In December 1963 "SAC accepted the first 465L elements and began to send a limited flow of [data] traffic through them." The NMCC had "direct communications with
MACV headquarters in Saigon" during the
Vietnam War.
1972 upgrade The WWMCCS "ADP upgrade program" included 1972 computer installations (e.g., 2
COC "
Data Net 355 computers") and additional NMCC expansion enlarged it to ~ and included the
Joint Operational Reporting (JOPREP) system. In 1977, the NMCC was 1 of 6 initial sites of the
WWMCCS Intercomputer Network (WIN) developed from a 1971–77 experimental program with testing and use by the JCS. The
Command Center Processing and Display System (CCPDS) replaced NMCC UNIVAC 1106 computers with "dedicated
UNIVAC 1100/42 computers" for console and large screen displays. By 1981 as part of the
WWMCCS Information System (WIS), the NMCC received data "directly from the
Satellite Early Warning System (SEWS) and directly from the
PAVE PAWS sensor systems". ==In popular culture==