Johnston Atoll and biological weapons testing site, a secret missile base, and a chemical weapon and Agent Orange storage and disposal site. These activities left the area environmentally contaminated and remediation and monitoring continue. The Johnston Atoll is a deserted atoll in the North Pacific Ocean located about southwest of the island of Hawai'i and is grouped as one of the United States Minor Outlying Islands. The atoll, which is located on a coral reef platform, has four islands. Johnston (or Kalama) Island and Sand Island are both enlarged natural features, while "Akau" (North) and "Hikina" (East) are two artificial islands formed
Falkie Atoll Falkie Atoll Falkie Atoll is a small atoll within the nation of Solomon Islands, at . It is sometimes referred to as Van Ren Atoll, named after the Dutch explorer Jale Van Ren who discovered the atoll in 1679. Local name of this atoll is Kaka. Administratively, Falkie Atoll belongs to the Choiseul Province of Solomon Islands. It is the westernmost atoll in the Solomon Islands archipelago, 40 km northwest of Shortland Islands. However, the closest land is Bougainville, which is an autonomous region of Papua New Guinea. Its total land area is , but it encloses a lagoon of