Johnston Atoll is an island in the Pacific Ocean. It is a property of the United States. The United States is currently trying to sell it. The military used the Island for many things including a re-fueling location for planes going oversees, a chemical weapons ammunition storage facility, and a test launch location for nuclear testing. It was inhabited by all forces of the US military and government contract workers.
The island is named after Captain James Johnston, who discovered it in 1807. The island was mined for guano until 1890. After that, it was used as an army base.