In 1956 and 1966, clearly with Japanese agreement, the United States kept nuclear weapons and in later years nuclear bombs without their fissile cores on Chichi-jima, about 500 miles southeast of the Japanese mainland. They also kept them on Iwo Jima, about 670 miles southeast of Tokyo. This shows that while the United States publicly vowed to keep nuclear weapons in Japan, it secretly stored them not only in Chichi-Jima and Iwo Jima but also in Okinawa. Until 1972, the U.
S kept nuclear weapons on Okinawa, and when the American occupation ended, also stored nuclear bombs without their fissile cores on the island. Since Chichi-Jima, Iwo Jima and Okinawa were under American occupation at the time and the bombs kept on the mainland did not have their plutonium or uranium centers the U. S was able to maintain that it had honored its agreements with Japan and did not have nuclear weapons "in Japan." This strategy that the outer islands were no longer under Japanese sovereignty was a mere excuse but technically there were nuclear weapons "in Japan." An article describing the documents is the first comprehensive account of the largely secret history of America's use of Japan in its nuclear-war planning is being published in the January/February issue of The Bulletin of the Atomic Scientists. A state department spokesman and senior Pentagon officials stressed that nuclear deployment policies have significantly changed in the last decade. There has been a drastically reduced number of nuclear weapons that are deployed overseas to 10 percent of what they were 10-15 years ago. As a matter of policy, the United States has not deployed nuclear weapons aboard surface ships under what the officials called, "normal conditions" since 1991, though it reserves the right to do so..