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.
Niger Air Base 201
The U.S. military presence at Base 201 began on April 19, 2016. Once complete, the runway will be big enough to accommodate both MQ-9 Reaper armed drones as well as the much larger C-17 transport airplanes. Construction was scheduled to be completed by the end of 2018. However, delays have pushed the completion estimate to mid-2019. Runway construction is being undertaken by the 31st Expeditionary Rapid Engineer Deployable Heavy Operational Repair Squadron Engineers. As of November 2018, no ISR aircraft are presently operating out of the base.