After having spent the last several years sending diplomats to Teheran to try to persuade Iran not to develop nuclear weapons, the British government announced Monday that it plans to renew its own nuclear arsenal.

If approved by the parliament, Monday’s decision means that the United Kingdom will extend its nuclear deterrent beyond 2050, essentially doubling the timeline of its own nuclear era.

Doing so is entirely consistent with the United Kingdom’s international obligations under the Non-Proliferation Treaty (NPT) and with a policy that favors complete elimination of nuclear weapons, the government insisted in a fact sheet, because the British nuclear arsenal today is smaller than during the Cold War, and because the Treaty does not say exactly when nuclear disarmament has to be accomplished. In fact, the new plan has “the right balance,” the government claims, between working for a world free of nuclear weapons and keeping those weapons.

The Reduction

Probably in acknowledgment that it will be a hard sell domestically and internationally, the $40 billion nuclear plan was sweetened with an announcement that Britain will reduce the number of “operationally available warheads” from fewer than 200 today to fewer than 160 at some future date.

The gesture is somewhat hollow, however, because Britain only has enough Trident D5 missiles to arm three of its four SSBNs with a maximum of 144 warheads anyway. The Blair government previously decided in 1998 to purchase only 58 missiles instead of 65. Since then, eight missiles have been used in operational test launches, leaving 50 missiles in the inventory – barely enough to fill the tubes of three SSBNs.

The British government has stated that the single SSBN on patrol at any given time carries “up to 48” warheads, a statement that partly reflects that some of the missiles have been given a “substrategic” mission, probably with only one warhead each. Depending on the number of substrategic mission missiles carried, the actual loading of the patrolling submarine probably is 36-44 warheads. Assuming a similar loading for the other two SSBNs for which there are missiles available, the estimated number of warheads needed for the British SSBN fleet since the substrategic mission first became operational in 1996 is 108-132 warheads.

The announcement to retain “fewer than 160” operationally available warheads seems to reflect this existing reality rather than an additional operational reduction. But it raises the question why the British government for the past eight years has retained 20 percent more warheads than it actually needed.

The Catch

The plan to replace the submarines comes with a catch: Half-way through their service-life, the missiles will expire, necessitating further investment to purchase new missiles and possibly also new warheads. The U.K. government has already received, the White Paper states, assurance from the U.S. government that Britain can be a partner if the United States later decides to build a successor to the D5 missile, and that such a missile will be compatible, or can be made compatible, with Britain’s new SSBNs.

The Warheads

The type of warhead deployed on Britain’s D5 missiles will last at least into the 2020, according to the White Paper. But the U.K. government says it doesn’t yet know whether the warhead can be “refurbished” to last longer, or whether it will be necessary to develop a replacement warhead. The next Parliament will have to make that decision, the government says, an option that of course will be harder to reject if a decision has already been made to build the new submarines.

How British are the warheads on the British SSBN fleet? The Ministry of Defence stated in a fact sheet that the warheads on the D5 missiles were “designed and manufactured in the U.K.” Even so, rumors have persisted for years that the warheads are in fact modified U.S. W76 warheads.

Now a U.S. Department of Energy document – declassified after eight years of processing – directly links the warhead designs on U.S. and U.K. Trident missiles. The document shows that the “U.K. Trident System,” as the British warhead modification is called, is similar enough to the U.S. W76 warhead to make up an integral part of the W76 engineering, design and evaluation schedule (see figure below).

Specifically, the document shows that between 1999 and 2001, work on five of 13 “W76 needs” involved the “U.K. Trident System.” These activities included vibration and point shock models, impulse models, impulse and point shock tests, vibration tests, as well as “TSR [thermostructural response] and Blast Models.”

The activities listed in the chronology are contained in a detailed database that “maps the requirements and capabilities for replacement subsystem and component modeling development, test, and production to the specific organizations tasked with meeting these requirements.”

The “U.K. Trident System” is thought to consist of a 100-kiloton thermonuclear warhead encased in a cone-shaped U.S. Mark-4 reentry vehicle. The W76 is the most numerous warhead (approximately 3,200) in the U.S. stockpile. Built between 1978 and 1988, about a third of the W76s are being modified as the W76-1 (see figure below) and equipped with a new fuze with ground-burst capability to “enable the W76 to take advantage of the higher accuracy of the D5” against harder targets. Delivery of the first W76-1 is scheduled for 2007 and the last in 2012. The W76 is also the first warhead scheduled to be modified under the proposed Reliable Replacement Warhead program.

The Nuclear Mission

The U.K. government presents several specific military and political justifications for why it intends to double Britain’s nuclear era.

One is that none of the other nuclear weapon states are even considering getting rid of their nuclear weapons, but instead are modernizing – some even increasing – their nuclear arsenals.

Another justification is that North Korea and Iran are pursuing nuclear weapons too, and that some countries might even “sponsor nuclear terrorism from their soil.”

Finally, the world is an uncertain and risky place, the White Paper concludes, and adds that it is “not possible to accurately predict the global security environment over the next 20 to 50 years.”

Those who question that these justifications are sufficient to retain the nuclear deterrent, Prime Minister Tony Blair writes in the foreword of the White Paper, “need to explain why disarmament by the U.K. would help our security.”

Analysis

The White Paper fails to identify a specific, urgent mission for British nuclear weapons. Instead, the justification to keep them seems like a little of everything: A couple of Cold War leftovers (Russia is still looming on the horizon and China might rise), a little sheep mentality (the other nuclear powers won’t give them up either), a little mission-creep (we might have to use them against proliferators), and a little hype (a role against terrorists). All of this is wrapped in the popular post-Cold War mantra that claims that the world suddenly is very uncertain and impossible to predict. As Prime Minister Tony Blair told the Parliament Monday:

“It is just that, in the final analysis, the risk of giving up something that has been one of the mainstrays of our security since the war [World War II], and moreover doing so when the one certain thing about our world today is its uncertainty, is not a risk I feel we can reasonably take.” The world has changed “beyond recognition,” and “it is precisely because we could not have recognized then, the world we live in now, that it would not be wise to predict the unpredictable in the times to come.”

Of course, it is one thing to argue that Britain needs a nuclear bomb in the basement or a mothballed nuclear production capability just in case. It is quite another to claim that strategic submarines need to continue to hide deep in the oceans much like they did during the Cold War without an urgent threat against the survival of the nation.

That’s for the U.K. Parliament to debate in the next months, followed – presumably – by a decision whether to approve the government’s plan sometime in 2007.

Background: MOD White Paper and Fact Sheets | British Nuclear Forces, 2005

An incipient nuclear arms race is emerging between China and the United States, according to a new report published today by the Federation of American Scientists and the Natural Resources Defense Council.

The 250-page report, Chinese Nuclear Forces and U.S. Nuclear War Planning, outlines the status and possible future development of China’s nuclear weapons, describes the history of U.S. nuclear targeting of China, and simulates nuclear strike scenarios between the two nuclear powers.

Both countries are pointing to the other as an excuse to modernize nuclear forces. In the United States the report finds that the Pentagon, the intelligence community, congressional committees, private institutes and the news media frequently overstate Chinese capabilities or present dramatic new developments out of context to underscore a threat.

China, for its part, cloaks its nuclear forces in a veil of secrecy, which creates suspicion and fear in other countries about Chinese intentions.

The report, which is based on analysis of declassified and unclassified U.S. government documents as well as commercial satellite images of Chinese installations, urges both countries to take steps to halt and reverse the tension and military build-up.

China’s Nuclear Forces

The report estimates that China has a stockpile of approximately 200 nuclear warheads, of which roughly 140 are deployed. About 100 of the warheads are for use by ballistic missiles while 40 are bombs for delivery by aircraft.

Given the almost complete lack of information from Chinese authorities about the size and composition of the stockpile, the FAS/NRDC estimate largely builds on analysis of declassified and unclassified assessments produced by U.S. government agencies over the years. Those assessments have been fraught with inaccuracy and inconsistency, the report finds, with a strong predisposition towards making worst-case predictions for stockpile size, weapons range and deployment.

This tendency continues today, and the report takes issue with the core prediction made by the intelligence community that says that the number of Chinese warheads primarily targeted against the continental United States will increase from 20 today to 75-100 warheads by 2015. The prediction assumes 40-55 new DF-31A missiles will be deployed over the next nine years in addition to the DF-31 and JL-2 missiles, a questionable estimate given that the DF-31A has not even been flight tested.

Chinese Submarines

The report discloses for the first time the number of patrols that Chinese submarines conduct each year. The capability of the Chinese submarines fleet is a hot issue following news media reports earlier this months about a Chinese submarine surfacing undetected near the USS Kitty Hawk carrier battlegroup off Okinawa, claims by the Pentagon that the Chinese navy is expanding its reach deep into the Pacific, and the U.S. Congress’ US-China Commission reporting earlier this month that China “continues to expand” its submarine fleet.

Yet the FAS-NRDC report shows that the Chinese submarine fleet is in steep decline from 120 submarines in the mid-1980s and expected by the U.S. navy to level out around 40 submarines in the next decade. The report shows that Chinese submarines rarely sail on patrol, that the entire submarine fleet in average conducts two patrols per year, that the most patrols conducted in a single year were six (in 2000), and that no patrols were conducted at all in 2005.

The report also reveals that China’s single ballistic missile submarine has never sailed on a nuclear deterrent patrol.

US Nuclear Targeting of China

Through analysis of declassified Pentagon documents, the report finds that U.S. nuclear targeting of China in the past has been considerably more prominent than normally assumed in the public debate. During the 1970s, for example, half of the major nuclear attack options in the U.S. strategic nuclear war plan were aimed at China.

After a hiatus in the 1980s precipitated by a joint U.S.-Chinese stand against the Soviet Union, U.S. nuclear targeting of China has increased after the end of the Cold War. The U.S. navy now bases the majority of its ballistic missile submarines in the Pacific, modernizing their nuclear missiles, and forward-deploying strategic bombers to Guam.

Nuclear Simulations

The report also presents the result of number of simulated nuclear strike scenarios between the two countries, showing that both have more than adequate capability to deter each other. The simulations are striking because they show that regardless of whether the strike is an imprecise Chinese “countervalue” attack on cities, or a highly accurate U.S. “counterforce” attack on military facilities, the result would be tens of millions of innocent civilian casualties.

A Chinese attack with 20 ICBMs would result in as many as 40 million casualties, the report estimates, and blanket large portions of the United States and Canada with radioactive fallout. Likewise, a limited and highly accurate U.S. nuclear attack on China’s 20 long-range ballistic missile silos would result in as many as 11 million casualties and scatter radioactive fallout across three Chinese provinces.

Take Google Earth Trip of Chinese Military Facilities

Download the FAS-NRDC Google Earth file here.

Making use of the unique capabilities of the free Google Earth program, FAS and NRDC have designed a virtual trip of selected nuclear and military facilities in China. Here is how to use it:

1. Download Google Earth onto your computer.
2. Click here or on the link below the map above to download the FAS-NRDC Google Earth file. The program will ask you to either open in Google Earth or download to your hard drive.
3. When Google Earth has finished loading on your computer, make sure the check-box “Chinese Nuclear Forces and U.S. Nuclear War Planning” in the “Places” window to the left is checked to activate the placemarks.
4. Click once on the first placemark (“Chinese Nuclear Forces and U.S. Nuclear War Planning”) to open the text “bubble” with information.
5. If all the placemarks have not opened automatically, click the “plus-box” to the left of the “check-box” in the “Places” window.
6. Those placemarks with an icon that looks like the Google Earth logo or a file-folder contain additional sub-placemarks. Click on the “plus-box” to open each folder. Note that some air bases contain sub-placemarks for each aircraft.
7. Double-click on each consecutive placemark to zoom in on each facility. Don’t forget to use the “tilt” and “rotate” functions of Google Earth to get a better view.
8. The last two folders contain graphic displays of nuclear strike simulations. These simulations are explained in detail in the Chapter 4 of the report (download from here).

Download: Full Report | Individual Chapters | Google Earth Map

Ever wondered where all those nukes are stored?

A new review published in the November/December issue of the Bulletin of the Atomic Scientists shows that the United States stores its nearly 10,000 nuclear warheads at 18 locations in 12 states and six European countries.

The article’s authors – Hans M. Kristensen of the Federation of American Scientists and Robert S. Norris of the Natural Resources Defense Council – identified the likely locations by piecing together information from years of monitoring declassified documents, officials statements, news reports, leaks, conversations with current and former officials, and commercial high-resolution satellite photos.

The highest concentration of nuclear warheads is at the Strategic Weapons Facility Pacific in Bangor, Washington, which is home to more than 2,300 warheads – probably the most nuclear weapons at any one site in the world. At any given moment, nearly half of these warheads are on board ballistic-missile submarines in the Pacific Ocean.

Approximately 1,700 warheads are deployed on Ohio-class ballistic missile submarines operating in the Pacific and Atlantic oceans, and about 400 warheads are at eight bases in six European countries – Belgium, Germany, Italy, the Netherlands, Turkey and Great Britain (for more information on U.S. warheads in Europe, go to http://www.nukestrat.com/us/afn/nato.htm). The United States is the only nuclear weapon state that deploys nuclear weapons in foreign countries.

Consolidation of U.S. nuclear storage sites has slowed considerably over the past decade compared to the period between 1992 and 1997, when the Pentagon withdrew nuclear weapons from 10 states and numerous European bases. Over the past decade, the United States removed nuclear weapons from three states – California, Virginia and South Dakota, and from one European country – Greece.

The overview finds that more than two-thirds of all U.S. nuclear warheads are still stored at bases for operational ballistic missiles and bombers, even through the Cold War ended more than 16 years ago. More than 2,000 of those warheads are on high alert, ready to launch on short notice. Only about 28 percent of U.S. warheads have been moved to separate storage facilities. The largest of these, an underground vault at Kirtland Air Force Base in Albuquerque, New Mexico, stores more than 1,900 warheads.

The 10 U.S. sites that currently host nuclear weapons are: the Strategic Weapons Facility Pacific, Bangor, Washington; Nellis Air Force Base, Nevada; Warren Air Force Base, Wyoming; Kirtland Air Force Base, New Mexico; Malmstrom Air Force Base, Montana; Minot Air Force Base, North Dakota; Pantex Plant, Texas; Barksdale Air Force Base, Louisiana; Whiteman Air Force Base, Missouri; and the Strategic Weapons Facility Atlantic, Kings Bay, Georgia. (See map.)

Go on a Nuclear Google Trip

Based on the information in the Bulletin article, FAS and NRDC have created a virtual satellite image tour of the 18 nuclear weapons storage facilities in the United States and Europe. To take the tour you need to have GoogleEarth installed on your computer. (GoogleEarth is available for free here.) Once you’re set up, click here or on the link below the Google map below to begin. When GoogleEarth has finished loading, check the “Where the Bombs are, 2006” box in the “Places” window to the left to activate the placemarks, click once on a placemark to get an overview of the nuclear weapons stored at the base, and click twice to zoom in on the facility.

The U.S. government refuses to disclose where it stores nuclear weapons, but the researchers emphasize that all the locations have been known for years to house nuclear weapons. Safety of nuclear weapons is determined not by knowledge of their location but by the military’s physical protection of the facilities and that the weapons cannot be detonated by unauthorized personnel.

Background: Where the Bombs are, 2006 | Status of World Nuclear Forces

In condemning the North Korean nuclear test and repeating its call for a denuclearized Korean Peninsula, one of the Bush administration’s first acts ironically has been to reaffirm the importance of nuclear weapons in the region.

“The United States will meet the full range of our deterrent and security commitments,” President Bush told Japan and South Korea after last week’s test. On Wednesday, Secretary of State Condoleezza Rice strongly hinted that the commitments potentially include nuclear strikes against North Korea.

But is it helpful or counterproductive at this stage to threaten North Korea with nuclear weapons?
(more…)

A decision to trim a tree in the Korean demilitarized zone in 1976 escalated into a threat to use nuclear weapons. After a fatal skirmish between U.S. and North Korean border guards, U.S. forces in the region were placed on heightened alert (DEFCON 3) and nuclear forces were deployed to signal preparations for an attack on North Korea. The North Koreans did not interfere with the tree trimming again, so the threat must have worked, the Pentagon concluded.

Thirty years later, North Korea has probably developed nuclear weapons and is trying to develop long-range ballistic missiles to threaten you-know-who, and the United States has ventured into a multi-billion dollar effort to build a missile defense system and a “New Triad” to better dissuade, deter, and defeat North Korea and other “rogue” states.

So, did the threat work?

The “tree-trimming incident,” as the U.S.-North Korean scuffle has come to be known, and other examples of using nuclear threats are described in the article “Nuclear Threats Then And Now” in the Bulletin of the Atomic Scientists.

View Article | Korea Background | Global Strike Mission

Update (February 22, 2007): DTRA announces that Divine Strake has been canceled.

The controversial Divine Strake explosion has been delayed again, this time “at least several months into calendar year 2007,” according to a statement distributed in Congress by the Defense Threat Reduction Agency. “We have stood down the experiment site and the workforce that was preparing the site for the experiment,” DTRA said.

The delay comes after DTRA told Senator Orrin Hatch (UT) that it will “look into the possibility of other locations” for conducting the Divine Strake test.

Divine Strake was initially scheduled to take place on June 2, 2006, but disclosure that the experiment was in fact intended to calibrate the use of low-yield nuclear weapons against underground targets, combined with lawsuits from local communities, caused the government to withdraw its “no impact” environmental assessment shortly before the scheduled test and delay it until September 2006.

Although DTRA has repeatedly stated that the experiment did not pose an environmental hazard, the agency now says that it is “developing a plan that would permit the conduct of the DIVINE STRAKE experiment if it is determined that the experiment can be conducted safely, is in compliance with NEPA, and there is a favorable court ruling.”

The decision to possibly move the test to another location is especially interesting because the current site was “carefully chosen” so that it “simulates the characteristics of important potential, global adversaries,” according to the DOE’s environmental assessment: “As a number of potential adversarial military targets are based in similar limestones, [Divine Strake] needed to be sited in a similar geological setting to actual military targets.” Previous high-explosive tests have been conducted at the White Sands Missile Range in New Mexico and at Misers Bluff at Planet Ranch in Arizona. We’ll see what Senator Pete Domenici from New Mexico and Jon Kyl from Arizona say about that.

The DTRA statement is not available on the web sites of DTRA, NNSA, or the Nevada Test Site. A search for Divine Strake on DTRA’s site gave “no results.” An on-line Divine Strake briefing previously posted on the DTRA web site has also been removed.

More Information On Divine Strake

The French magazine Défense Nationale asked me to submit an article about the new U.S. National Military Strategy published by the Bush administration in March 2006 and how it relates to the so-called preemption doctrine announced by the administration in 2002. The article is included in the July 2006 issue which focuses on the nuclear deterrence debate following the announcement by French president Jacques Chiraq in January that France has adjusted its nuclear posture to target regional adversaries armed with weapons of mass destruction. The magazine is published by the Committee for National Defence Studies, an independent research institution which includes several retired generals and admirals from the French military.

Download article

The Pentagon is considering acquiring up to four types of Reliable Replacement Warheads (RRW), twice as many as reported so far, according to an overview discovered by the Federation of the American Scientists on a Pentagon web site.

The Department of Energy told Congress in April that Los Alamos National Laboratory and Lawrence Livermore National Laboratory were working on “an RRW design” for completion later in 2006. The Washington Post added last month that a Senate subcommittee had added $10 million to next year’s budget to fund a design of a second RRW.

According to the new DOD overview, which looks beyond 2030, the future nuclear weapons stockpile would be made up of 4-6 different types of warheads (down from nine types today). A decision would be made mid-next decade about whether to have a mix of RRWs and existing warhead types or transition to an all RRW-stockpile.

In an apparent response to the Bush administration’s decision to reduce reliance of reserve warheads and instead transition to a “responsive infrastructure” that will produce warheads when needed, the DOD plan envisions “steady-state production of warheads for deployment” in the long term.

The plan also forecasts decisions on developments of warheads for the next generation of nuclear weapon delivery systems (missiles and aircraft).

The U.S. nuclear stockpile currently contains approximately 10,000 nuclear warheads of nine principle designs: B61, W62, W76, W78, W80, B83, W84, W87 and W88. The Bush administration has decided to reduce the total stockpile “almost in half” which is estimated to leave a stockpile of some 6,000 warheads in 2012.

Visit the Pentagon web site.

A Written Declaration presented in the European Parliament calls for the withdrawal of US nuclear weapons from Europe by the end of 2006. The Declaration has until December 10 to gather support from at least half of the Parliament’s 732 members to be adopted and formally submitted to the US government. The initiative comes as Russia refused last week to discuss tactical nuclear weapons with the United States. Most European want the US to withdraw its remaining nuclear weapons from Europe.

Background report: U.S. Nuclear Weapons In Europe

The Air Force has published a new report about the threat from ballistic and cruise missiles. The new report, Ballistic and Cruise Missile Threat, presents the Air Force National Air and Space Intelligence Center’s (NASIC) assessment of current and emerging weapon systems deployed or under development by Russia, China, India, Pakistan, North Korea, Iran, Syria and others.

Among the news in the report is a different and higher estimate for China’s future nuclear arsenal than was presented in the previous NASIC report from 2003. Whereas the previous assessment stated that China in 15 years will have 75-100 warheads on ICBMs capable of reaching the United States, the 2006 report states that this number will be “well over 100” warheads. NASIC also believes that a new Chinese cruise missile under development will have nuclear capability.

Also new is that NASIC reports that the Indian Agni I ballistic missile has not yet been deployed despite claims by the Indian government that the weapon was “inducted” into the Indian Army in 2004. Contrary to claims made by some media and experts, the NASIC report states that the Indian Bramos cruise missile does not have a nuclear capability. The Babur cruise missile under development by Pakistan, however, is assessed to have a nuclear capability.

A copy of the report, which was published in March 2006 and recently obtained by the Federation of American Scientists, is available in full along with previous versions here.

Almost 70 percent of people in European countries that currently store U.S. nuclear weapons want a Europe free of nuclear weapons, according to an opinion poll published by Greenpeace International. In contrast, Defense Secretary Donald Rumsfeld suggested in an interview with Der Spiegel last November that the Europeans want to keep U.S. nuclear weapons.

Question: “Do You Want Europe to be Free of Nuclear Weapons or Not?”

Background: U.S. Nuclear Weapons in Europe

Deployment of U.S. nuclear weapons in Turkey was brought up in a debate in the Turkish Parliament today by Turkey’s former Ambassador to the United States, Sukru Elekdag. According to an article in the Turkish paper Hürriyet, Elekdag called attention to a report, US Nuclear Weapons In Europe, which asserts that the U.S. Air Force stores 90 nuclear bombs at the Incirlik Air Base in southern Turkey.

The report was published one year ago, but the initiative by Elekdag, who represents the Republican People’s Party (CHP), is the first time the findings have been brought before the Tuskish Parliament. The Tuskish debate follows calls last year in Belgium, Germany and the Netherlands for a withdrawal of U.S. nuclear weapons from Europe, something NATO and the Pentagon have rejected. Elekdag pointed out that nuclear weapons were removed from Greece only a few years ago and that Turkey’s continued allowance of U.S. nuclear bombs at Incirlik is hard to explain to Muslim and Arab neighbors.