Caribou Air Force Station
Caribou Air Force Station was the first of five, United States Air Force, Air Material Command (AMC) installations that were constructed during the period of 1951 – 1953. Each of the five installations was built specifically to provide operational storage of the nuclear stockpile, and to provide a specified number of weapons to their adjacent Strategic Air Command (SAC) bases. The first four installations were built and occupied by 1953. The fifth installation, although completed in 1953, would not be utilized until 1955. The first installation, code named “Site Easy” was originally known as the “North River Depot”. It was constructed between 1951-1952, and operations began in 1952. Funds were provided in 1951 to the Armed Forces Special Weapons Project (AFSWP), for the planning and construction of an ordnance storage site in the vicinity of a new Strategic Air Command Base. The AFSWP was directed to utilize the services of the Corps of Engineers, Department of Army, for planning and construction, and was made responsible for monitoring such work, and for operational security measures during these phases. The original directive to the AFSWP stipulated that upon completion of construction the installation would be turned over to Headquarters, Air Material Command for operational responsibilities.
Chaguanas
The Princess Margaret Highway, built by the US military during World War II, joined the Southern Main Road at Chaguanas. Construction of the Sir Solomon Hochoy Highway extended the highway south to San Fernando. The Carlsen Air Force Base was a former United States Army Air Forces World War II airbase constructed in Carlsen Field in 1942, consisting of two landing strips, "Edinburgh" and "Xerxes". The airbase also included an emergency landing strip, "Tobago". Edinburgh Field became the principal combat base for USAAF bombers and Naval airships on Trinidad as well as Navy fighters with a complex of runways and taxiways that surpassed even Waller Field. This lasted until 3 November 1943 when, it was renamed Carlsen Field. It was also used by the Royal Air Force and was defended by US Army infantry and AA units. When the Navy began lighter-than-air operations in the Caribbean in the fall of 1943, the 80th Seabees were brought in to build a station at Carlsen Field. To supplement the eight Army-owned buildings taken over by the Navy, the 80th Battalion built a large, steel blimp hangar, a mooring circle, paved runways, a helium-purification plant, and other operational appurtenances. The facility was formally disestablished on 1950, and today the former air and naval airship base has been turned into a dairy and agricultural area south of Chaguanas and is all but unrecognisable. Much of the former airfield area is owned by National Flour Mills (NFM) and the only remnants of the base are the name of the area in south Chaguanas, along with streets named "Edinburgh" and "Xerxes".