An unknown substance claimed to be sea dye leaks from a tank on Kadena Air Base in an undated photo. No records exist for the spill suggesting it was unreported even within the military.
Equipped with two 3.7 kilometer runways and thousands of hangars, homes and workshops, the base and its adjoining arsenal at Chibana sprawl across 46 square kilometers of Okinawa's main island. Approximately 20,000 American service members, contractors and their families live or work here alongside 3,000 Japanese employees. More than 16,000 Okinawans own the land upon which the installation sits.1
Kadena Air Base hosts the biggest combat wing in the USAF - the 18th Wing - and, during the past seven decades, the installation has served as an important launch pad for wars in Korea, Vietnam and Iraq. Given the long history of Kadena Air Base and its city-sized scale, it is easy to understand why the USAF calls it "The Keystone of the Pacific."
But until now, no one has realized the damage the base has inflicted on the environment and those who live in its vicinity. Documents obtained under the U.S. Freedom of Information Act reveal how years of accidents and neglect have polluted local land and water with hazardous chemicals including arsenic, lead, polychlorinated biphenyls (PCBs), asbestos and dioxin. Military authorities have often hidden this contamination, putting at risk the health of U.S. service members, Okinawan base employees, and the 184,000 Okinawan civilians living in neighboring communities.
Comment: It's no wonder the Japanese have been furiously protesting against the U.S. military presence for years: