United States nuclear weapons in Japan

In the 1950s, after U.S. interservice rivalry culminated in the Revolt of the Admirals, a stop-gap method of naval deployment of nuclear weapons was developed using the Lockheed P-2 Neptune and North American AJ-2 Savage aboard aircraft carriers.

U.S. leaders contemplated a nuclear first strike, including the use of those based in Japan, following the intervention by the People's Republic of China during the Korean War.

[4] Following the Korean War, U.S. nuclear weapons based in the region were considered for Operation Vulture to support French military forces in Vietnam.

"[6] During U.S. involvement in the Vietnam War the use of nuclear weapons was suggested in order to "defoliate forests, destroy bridges, roads, and railroad lines.

"[7] In addition, the use of nuclear weapons was suggested during the planning for the bombing of Vietnam's dikes in order to flood rice paddies, disrupt the North Vietnamese food supply, and leverage Hanoi during negotiations.

[11][12][13] The agreement allows the United States to deploy or store nuclear arms in Japan without requiring the express permission of the Japanese Government.

[12] However, the original agreement document turned up in 1969 during preparation for an updated agreement, when a memorandum was written by a group of U.S. officials from the National Security Council Staff; the Departments of State, Defense, Army, Commerce and Treasury; the Joint Chiefs of Staff; the Central Intelligence Agency; and the United States Information Agency.

If the Japanese should come to believe that the rights or welfare of the Okinawans were being prejudiced or that the US intended to make the present administrative arrangements permanent, the leftists could whip up popular resentment, and the question of the return of the islands to Japan could become a major issue...[14][15]After the Battle of Okinawa the island was first placed under the control of the United States Navy.

[16] A draft of the November 21, 1969, Agreed Minute to Joint Communique of United States President Nixon and Japanese Prime Minister Sato was found in 1994.

However, in order to discharge effectively the international obligations assumed by the United States for the defense of countries in the Far East including Japan, in time of great emergency the United States Government will require the re-entry of nuclear weapons and transit rights in Okinawa with prior consultation with the Government of Japan.

[10] According to a former U.S. Air Force officer stationed on Iwo Jima, the island would have served as a recovery facility for bombers after they had dropped their bombs in the Soviet Union or China.

War planners reasoned that bombers could return Iwo Jima, "where they would be refueled, reloaded, and readied to deliver a second salvo as an assumption was that the major U.S.

[21] North American F-100 Super Sabre fighter-bombers capable of carrying hydrogen bombs were also present at Kadena Air Base.

[25] The plan was approved in 1968 by JCS Chairman Earle Wheeler and U.S. Secretary of Defense Robert S. McNamara, a fact that only came to light in 2016.

[26] The plan was not implemented over fears that the required seizure of civilian-owned land would cause protests to erupt as well as a decreased need in the drawn down of the Vietnam War,[25] and budgetary restrictions.

[23][27][28][29][30][31] In June or July 1959, a MIM-14 Nike-Hercules anti-aircraft missile was accidentally fired from the Nike site 8 battery at Naha Air Base on Okinawa which according to some witnesses, was complete with a nuclear warhead.

[40] Since the ship was traveling to Japan from duty in the Vietnam war zone, no public mention was made of the incident at the time and it would not come to light until 1981 when a Pentagon report revealed that a one-megaton bomb had been lost.

[16] In 1996 unused land inside the former-Chibana, now-Kadena Ammunition Storage Area was offered as a location to move the Futenma facility to.

"[11] The U.S. eventually revealed the presence of nuclear weapons during negotiations over the 1971 Okinawa Reversion Agreement, which later returned sovereignty to Japan.

[11] In a 1981 interview, Reischauer confirmed, "U.S. naval vessels carrying nuclear weapons routinely visited ports in Japan with the tacit approval of the Japanese government, violating the LDP's oft-stated 'three non-nuclear principles' prohibiting their manufacture, possession, or introduction.

[11] Following the JCS order, the Department of Defense began withdrawing U.S. tactical nuclear weapons from Taiwan in 1974, and from the Philippines in 1976.

[11] After reversion, the nuclear alert role on Okinawa increased and command and control aircraft continued to operate from the island.

[49] In an effort by Prime Minister Yukio Hatoyama to restore public trust,[49] the panel was set up by Japan's newly elected Democratic Party and its creation was motivated by an effort to increase transparency about the secret nuclear agreements with the U.S.[48] Japan's Foreign Minister Katsuya Okada revealed the findings of the panel and admitted that previous governments had lied to the Japanese public, over decades, about nuclear weapons agreements with the U.S. in violation of the country's non-nuclear principles.

[49] The pacts showed different interpretations between the countries of restrictions and an "unspoken understanding" permitting port calls for warships without prior consent.

[49] The announcement revealed that an April 1963 meeting between Reischauer and Foreign Minister Masayoshi Ohira where a "full mutual understanding" on the "transit issue" was reached.

[50] In December 2015, the United States Government acknowledged officially for the first time that it had stored nuclear weapons in Okinawa prior to 1972.

The fact had been widely understood or strongly speculated since the 1960s and was subsequently revealed by the U.S. military in apparently unnoticed photographs of nuclear weapons and delivery systems on Okinawa that were declassified and released to the U.S. National Archives in 1990.

Submarines with cruise missiles from the United States visit the Yokosuka and Sasebo ports as part of routine U.S. Navy activities.

On 27 February 2022, former prime minister Shinzo Abe proposed that Japan should consider a nuclear sharing arrangement with the US similar to NATO.

[53][54] Many Japanese politicians consider Vladimir Putin's threat to use nuclear weapons against a non-nuclear state to be a game changer.

A TM-72 Mace missile is trucked through the Okinawa city of Gushikawa in the early 1960s in a rare open display.
Technicians at work on a Mace B nuclear-armed cruise missile in a hard-site launcher on Okinawa in 1962
Mark 7 Atomic bomb being readied by the 8th Tactical Fighter Wing at Kadena Air Base
A MGM-13 MACE B missile launches from silo. The Okinawa-based 873d Tactical Missile Squadron may have received orders to launch Mace missiles against Sino-Soviet targets during the Cuban Missile Crisis . [ 19 ]
Former MGM-13 Mace missile launch sites on Okinawa
Mark 28 atomic bomb being transported to an F-100 by the 18th Tactical Fighter Wing on Okinawa
MIM-14 Nike-H missile at Okinawa, June 1967
Thousands of artillery projectiles at Chibana Army Ammunition Depot, February 1969