Loring Air Force Base
In 1951, the Department of Defense (DOD) allocated funds for the construction of an ordnance storage site at Loring AFB. The designs called for a self-sufficient "maximum security storage area for the most advanced weapons of mankind". The mission of the facility would be the protection and maintenance of the weapons used by SAC. The facility was in the northeast corner of the base, and construction began on 4 August 1951. In addition to 28 storage igloos and other weapons storage structures, the facility included weapons maintenance buildings, barracks, recreational facilities, a warehouse, and offices.
RCAF Station St. Margarets
The Royal Canadian Air Force selected the community of St. Margarets for the location of a radar station in the early 1950s to close a key gap in air defence coverage. RCAF Station St. Margarets was constructed on what was then called the Old Yellow Road, today Highway 11, approximately northwest of the county line between Northumberland County and Kent County and approximately southeast of the air base at RCAF Station Chatham. Construction began in 1951 under general contractor Diamond Construction and it went operational on November 1, 1953, as part of the Pinetree Line network of radar stations when the ground control intercept operation was moved from RCAF Station Chatham.