Was established in October 1948 by Air Defense Command (ADC) as intermediate level of command. Initially responsible for atmospheric air defense of middle Atlantic region from North Carolina to greater New York City area east of the Appalachian mountains. Commanded Manual Direction Center (MDC) at Roslyn Air Force Station, New York (P-3) 1948-1958 directing interceptor units to aircraft identified by Aircraft Control and Warning Squadrons at radar stations in AOR. It employed off shore naval picket ships, fixed "Texas Tower" radar sites, airborne early warning units, and a civilian Ground Observer Corps program. The latter phased down when the SAGE program was implemented.
In 1961 the division assumed air defense training responsibility for Air National Guard (ANG) units within the area. During the Cuban Missile Crisis of 1962, the division deployed fighter aircraft and part of its airborne early warning and control force to Florida.
26th Air Division/Southwest Air Defense Sector AOR, 1979-1990
The division was gradually phasing down until it replaced the 27th Air Division at Luke Air Force Base, Arizona in November 1969, when in an ADCOM reorganization of atmospheric defense forces, the command became responsible for the air defense of a large area of the southwest. In October 1979, it transferred to Tactical Air Command (ADTAC) and continued to supervise atmospheric defense forces of its assigned AOR. Assumed additional designation 26th ADCOM Region on 8 December 1978.
Began phase-down of operations with activation of new Southwest Air Defense Sector (SWADS) in July 1987. Engaged chiefly in transfer of mission to SWADS 1987-1990. Inactivated on 1 October 1990.
^Preface by Buss, L. H. (Director) (14 April 1959). North American Air Defense Command and Continental Air Defense Command Historical Summary: July–December 1958 (Report). Directorate of Command History: Office of Information Services. "USAF also set down a new schedule (see table preceding). This schedule was to be included in an entirely new SAGE schedule (Schedule A) to be prepared by the SAGE Project Office. The phasing was to be as follows. The last combat center, AN/FSQ-8, to be installed under SAGE Schedule 7 (Improved), was to be at McChord AFB (25th Air Division). Subsequent combat facilities and equipment were to be cancelled with the exception of (1) one AN/FSQ-8 that was to be converted to an AN/FSQ-7, using FY 1959 funds, to be installed at the Sioux City DC, and (2) the combat center building at Minot." (improved) On April 1, 1966, Combat Center CC-03 at McChord AFB, WA was inactivated in conjunction with the activation of Combat Center CC-05 at Hamilton AFB, CA, and the combining of 25th, 26th and 27th NORAD divisions into the new Headquarters Western NORAD Region at HAFB. CC-05 utilized a 3-String AN/GSA-51 computer system. CC-05 and Headquarters Western NORAD Region were inactivated at Hamilton AFB on December 31, 1969.
^The simultaneous activation and reactivation on 1 February 1952 reflects a change from a Table of Organization unit to a Table of Distribut8on unit.