The
federal government of the United States is known to possess three types of
weapons of mass destruction:
nuclear weapons,
chemical weapons and
biological weapons. The U.S. is the only country to have
used nuclear weapons in combat. The U.S. arsenal of weapons of mass destruction is among the largest in the world; depending on the definition, second only to
Russia's.
Biological weapons

E120 biological bomblet, developed before the U.S. ratified the Biological Weapons Convention
The United States offensive biological weapons program was instigated by President
Franklin Roosevelt and the
U.S. Secretary of War in October of 1941.
[1] Research occurred at several sites. A production facility was built at Terre Haute, Indiana but testing with a benign agent showing contamination of the facility so no production occurred during
World War II. A more advanced production facility was constructed in Pine Bluff, Arkansas, which began producing biological agents in 1954. Fort Detrick, Maryland later became a production facility as well as a research site. The U.S. developed anti-personnel and anti-crop biological weapons.
[2]
In mid-1969, the UK and the Warsaw Pact, separately, introduced proposals to the UN to ban biological weapons, which would lead to a treaty in 1972. The U.S. cancelled its offensive biological weapons program by
executive order in November 1969 (microorganisms) and February 1970 (toxins) and ordered the destruction of all offensive biological weapons, which occurred between May 1971 and February 1973. The U.S. ratified the
Geneva Protocol on
January 22,
1975. The U.S. ratified the
Biological Weapons Convention (BWC) which came into effect in March 1975.
Negotiations for a legally binding verification protocol to the BWC proceeded for years. In 2001, negotiations ended when the
Bush administration rejected an effort by other signatories to create a protocol for verification, arguing that it could be abused to interfere with legitimate biological research.
The
U.S. Army Medical Research Institute of Infectious Diseases, located in
Fort Detrick,
Maryland, produces small quantities of biological agents, for use in biological weapons defense research. According to the U.S. government, this research is performed in full accordance with the BWC.
In late 2001 there was series of mysterious
anthrax attacks aimed at US media offices and the US Senate which killed five people. The anthrax used in the attacks was the
Ames strain, which was first studied at Fort Detrick and then distributed to other labs around the world. The attacks remain unsolved to this day.
:
Chemical weapons
History
The U.S. had entered into the
Hague Conventions of 1899 and 1907 which banned aerial bombing and chemical warfare among other things but which were disregarded in actual combat.
In WWI, the U.S. produced its own munitions as well as deploying weapons produced by the French. The U.S. produced 5,770 metric tons of these weapons, including 1,400 metric tons of
phosgene and 175 metric tons of
mustard gas. This was about 4% of the total chemical weapons produced for that war and only just over 1% of the era's most effective weapon, mustard gas. (U.S. troops suffered less than 6% of gas casualties.)
After the war, the U.S. was party to the
Washington Arms Conference Treaty of 1922 which would have banned chemical weapons but failed because it was rejected by the French. The U.S. continued to
stockpile chemical weapons, eventually exceeding 30,000 tons of material.
Chemical weapons were not used by the U.S. or the other
Allies, during
World War II; however, quantities of such weapons were deployed to Europe for use in case Germany initiated chemical warfare. At least one accident occurred: On the night of
December 2,
1943, German
JU-88 bombers attacked the port of
Bari in Southern
Italy, sinking several American ships - among them ''John Harvey'', which was carrying mustard gas. The presence of the gas was highly classified, and authorities ashore had no knowledge of it - which increased the number of fatalities, since physicians, who had no idea that they were dealing with the effects of mustard gas, prescribed treatment proper for those suffering from exposure and immersion. According to the U.S. military account, "Sixty-nine deaths were attributed in whole or in part to the mustard gas, most of them American merchant seamen" out of 628 mustard gas military casualties. Civilian casualties were not recorded. The whole affair was kept secret at the time and for many years after the war.
After the war, the
Allies recovered German artillery shells containing three new nerve agents developed by the Germans (
Tabun,
Sarin, and
Soman), prompting further research into
nerve agents by all of the former Allies. Thousands of American soldiers were exposed to warfare agents during
Cold War testing programs
[3] as well as in accidents. One such accident in 1968, killed approximately 6,400 sheep when an agent, possibly
VX drifted out of
Dugway Proving Ground during a test.
[4]
The U.S. also investigated a wide range of possible nonlethal, psychobehavioral chemical incapacitating agents including
psychedelic indoles such as
lysergic acid diethylamide (experimented to see if it could be used for effective
mind control) and
marijuana derivatives, certain tranquilizers like
ketamine or
fentanyl, as well as several glycolate anticholinergics. One of the anticholinergic compounds,
3-quinuclidinyl benzilate, was assigned the
NATO code BZ and was weaponized at the beginning of the
1960s for possible battlefield use.
This agent was allegedly employed by American troops as a counterinsurgency weapon in the
Vietnam War but the U.S. maintains that this agent never saw operational use.
[5] The North Koreans and Chinese have alleged that chemical and biological weapons were used by the United States in the
Korean War; but, the United States denial is supported by Russian archival documents.
[6]
On
November 25,
1969, President
Richard Nixon unilaterally renounced the first use of chemical weapons and renounced all methods of biological warfare.
[7] He issued a unilateral decree halting production and transport of chemical weapons which remains in effect. The U.S. began to research safer disposal methods for chemical weapons in the 1970s, destroying several thousand tons of mustard gas by incineration at Rocky Mountain Arsenal and nearly 4,200 tons of nerve agent by chemical neutralization at Tooele Army Depot and Rocky Mountain Arsenal.
[8] The U.S. began stockpile reductions in the 1980s, removing some outdated munitions and destroying its entire stock of BZ beginning in 1988. In 1990, Johnston Atoll Chemical Agent Disposal System began destruction of chemical agents stored on
Johnston Atoll in the Pacific, seven years before the Chemical Weapons Treaty came into effect. In May 1991, President
George H.W. Bush unilaterally committed the United States to destroying all chemical weapons and to renounce the right to chemical weapon retaliation. In 1993, the United States signed the
Chemical Weapons Treaty, which required the destruction of all chemical weapon agents, dispersal systems, chemical weapons production facilities by April 2012. The U.S. prohibition on the transport of chemical weapons has meant that destruction facilities had to be constructed at each of the U.S.'s nine storage facilities. The U.S. met the first three of the treaty's four deadlines, destroying 45% of its stockpile of chemical weapons by 2007. However, official expectations for the date of complete elimination of all chemical weapons was
after the treaty deadline of 2012.
Treaties
The United States was a party to some of the earliest modern chemical weapons ban treaties, the
Hague Conventions of 1899 and the
Washington Arms Conference Treaty of 1922 although these treaties were unsuccessful. The U.S. ratified the
Geneva Protocol which banned the use of chemical and biological weapons on
January 22,
1975. In 1989 and 1990, the U.S. and the Soviet Union entered an agreement to end their chemical weapons programs, including "binary weapons". The United States ratified the
Chemical Weapons Convention which came into force in April 1997. This banned the possession of most types of chemical weapons, some of which were possessed by the U.S. at the time. It also banned chemical weapons development, and requires the destruction of existing stockpiles, precursor chemicals, production facilities and weapon delivery systems.
Chemical weapons disposal
According to the
U.S. Army Chemical Materials Agency, as of June 2007, the United States has destroyed 45% of the original stockpile of nearly 31,500 tons of nerve and mustard agents declared in 1997.
[9] Of the weapons destroyed up to 2006, only 500 tons was mustard gas and the majority was other agents such as
VX and
sarin (GB) (86% of the latter was destroyed by April 2006).
[10]
More than 13,000 tons of prohibited weapons had been destroyed by June 2007 to meet the Phase III quota and deadline. The original commitment in Phase III required all countries to have 45 percent of the chemical stockpiles destroyed by April 2004. Anticipating the failure to meet this deadline, the Bush administration in September 2003 requested a new deadline of December 2007 for Phase III and announced a probable need for an extension until April 2012 for Phase IV, total destruction (requests for deadline extensions cannot formally be made until 12 months before the original deadline). This extension procedure spelled out in the treaty has been utilized by other countries, including Russia and the unnamed "state party". Although April 2012 is the latest date allowed by the treaty, the U.S. also noted that this deadline may not be met due to environmental challenges and the U.S. decision to destroy leaking individual chemical shells before bulk storage chemical weapons.
[11][12]
The primary chemical weapon storage facilities in the U.S. are
Umatilla Chemical Depot in
Oregon,
Pueblo Chemical Depot in
Colorado,
Newport Chemical Depot in
Indiana,
Blue Grass Army Depot in
Kentucky,
Anniston Chemical Activity in
Alabama,
Pine Bluff Chemical Activity in
Arkansas and
Deseret Chemical Depot in
Utah.
[13] The largest of these facilities is Deseret.
Disposal of chemical munitions is occurring at Umatilla, Anniston, Pine Bluff, Newport and the
Tooele Chemical Demilitarization Facility (for Deseret). The Pine Bluff Chemical Agent Disposal Facility in Arkansas began operations on
March 29,
2005 after completing in 1988-1990, destruction of munitions containing
BZ, a non-lethal hallucinating agent. Newport began destruction operations in May, 2005. Pueblo and Blue Grass are constructing pilot plans to test novel methods of disposal but full plants may not open until 2011. The U.S. also uses mobile treatment systems to treat chemical test samples and individual shells without requiring transport from the artillery ranges and abandoned munitions depots where they are occasionally found.
Operations were completed at
Johnston Atoll Chemical Agent Disposal System where all 640 metric tons were destroyed by 2000 and at
Edgewood Chemical Activity in
Maryland, with 1,472 metric tons of agent destroyed by February 2006.
Hawthorne Army Depot in Nevada destroyed all
M687 chemical artillery shells and 458 metric tons of binary precursor chemicals by July 1999. All
DF and
QL, chemical weapons precursors, were destroyed in 2006 at Pine Bluff.
Nuclear weapons

US nuclear warhead stockpiles, 1945-2002.
Main articles: Nuclear weapons and the United States
Nuclear weapons have twice been deployed in wartime: two nuclear weapons were used by the United States against
Japan in
World War II in the
atomic bombings of Hiroshima and Nagasaki. Altogether, the two bombings killed an estimated 200,000 Japanese citizens and injured another 130,000. The overwhelming majority of the casualties were civilian.
The U.S. conducted an extensive nuclear testing program. 1054 tests were conducted between 1945 and 1992. The exact number of nuclear devices detonated is unclear because some tests involved multiple devices while a few failed to explode or were designed not to create a nuclear explosion. The United States ceased atmospheric testing after
November 4,
1962 before the
Partial Test Ban Treaty. In 1976 the U.S. and the Soviet Union agreed to limit the size of tests to 150
kilotons. The last U.S. nuclear test was on
September 23,
1992 before the
Comprehensive Test Ban Treaty.
Currently, the United States
nuclear arsenal is deployed in three areas:
:
★ Land-based
intercontinental ballistic missiles, or ICBMs;
:
★ Sea-based,
nuclear submarine-launched
ballistic missiles, or
SLBMs; and
:
★ Air-based nuclear weapons of the
U.S. Air Force's heavy bomber group
The United States is one of the five "Nuclear Weapons States" under the
Nuclear Non-Proliferation Treaty, which the US ratified in
1968. On
October 13,
1999, the
U.S. Senate rejected ratification of the Comprehensive Test Ban Treaty, having previously ratified the Partial Test Ban Treaty in 1963. The U.S. has not, however,
tested a nuclear weapon since 1992, though it has tested many non-nuclear components and has developed powerful
supercomputers in an attempt to duplicate the knowledge gained from testing without the actual tests themselves.
In the early 1990s, the U.S. shifted out of the mode of developing new nuclear weapons and instead devotes most of its nuclear efforts into
stockpile stewardship, maintaining and dismantling its now-aging arsenal. The administration of
George W. Bush decided in 2003 to engage in research about a new generation of small nuclear weapons, especially "earth penetrators" .
[14] The budget passed by the
United States Congress in 2004 eliminated funding for some of this research including the "
bunker-busting or
earth-penetrating" weapons.
The exact number of nuclear weapons possessed by the United States is difficult to determine. Different treaties and organizations have different criteria for reporting nuclear weapons, especially those held in reserve, and those being dismantled or rebuilt:
:
★ As of 1999, the U.S. was said to have 12,000 nuclear weapons of all types stockpiled.
[15]
:
★ In its
Strategic Arms Reduction Treaty (START) declaration for 2003, the U.S. listed 5968 deployed warheads as defined by START rules.
[1]
:
★ For 2004, the
Bulletin of the Atomic Scientists listed the U.S. with about 7,000 operational and 3,000 reserve warheads.
[16]
In 2002, the United States and Russia agreed in the
SORT treaty to reduce their deployed stockpiles to not more than 2,200 warheads each. In 2003, the US rejected
Russian proposals to further reduce both nation's nuclear stockpiles to 1,500 each.
[Citation needed] The US has adopted a plan to modernise and update its allowed weapons as well as investigate the possibility of manufacturing "micronuclear weapons" for use on the battlefield and against bunkers.
Land-based intercontinental ballistic and cruise missiles (ICBMs)
The US Air Force currently operates just over 500
ICBMs at around 15 missile complexes located primarily in the northern Rocky Mountain states and the Dakotas. These are all of the
Minuteman III ICBM variants.
Peacekeeper missiles were phased out of the Air Force inventory in 2005. All USAF
Minuteman II missiles have been destroyed in accordance to START and their launch silos sealed or sold to the public. To comply with the
START II most US multiple independently targetable reentry vehicles, or
MIRVs, have been eliminated and replaced with single warhead missiles. However, since the abandonment of the START II treaty, the U.S. is said to be considering retaining 800 warheads on 500 missiles.
[17]
Sea-based ICBMs
The
US Navy currently has 14
SSBN ''Ohio''-class submarines deployed. Each submarine is equipped with a complement of 24
Trident II missiles. Approximately 12 U.S.
attack submarines are equipped to launch, but do not currently carry nuclear
Tomahawk missiles. Sea-launch weapons make up the majority of weapons declared under START II rules.
Heavy bomber group
The US Air Force also operates a strategic nuclear bomber fleet. The bomber force consists of 93
B-1s, 94
B-52s, and 21
B-2s. The majority of these heavy bombers either are being or have been retrofitted to operate in a solely conventional mode. The
Strategic Air Command which for decades had kept nuclear weapons aloft 24 hours a day was disbanded in 1992 and merged into the US Strategic Command.
In addition to this the US armed forces can also deploy tactical smaller nuclear weapons either through
cruise missiles or with conventional
fighter-bombers. The U.S. maintains about 850 nuclear
gravity bombs capable of use by
F-15,
F-16,
F-35 and
Panavia Tornado fighter aircraft. Some 480 of these bombs are deployed at eight airbases in six European NATO countries; of these, 180 tactical
B61 nuclear bombs fall under a
nuclear sharing arrangement.
References
1. http://www7.nationalacademies.org/archives/cbw.html
2. http://www.fas.org/nuke/guide/usa/cbw/bw.htm
3. http://www.gulfweb.org/bigdoc/rockrep.cfm
4. http://www.gulfweb.org/bigdoc/rockrep.cfm#dugway
5. http://www.brooksidepress.org/Products/OperationalMedicine/DATA/operationalmed/Manuals/RedHandbook/007IncapacitatingAgents.html
6. http://usinfo.state.gov/media/Archive/2005/Nov/09-262154.html
7. http://www.state.gov/t/ac/trt/4718.htm
8. http://www.cma.army.mil/fndocumentviewer.aspx?docid=003676901
9. http://www.cma.army.mil/fndocumentviewer.aspx?docid=003676901]
10. http://usinfo.state.gov/is/Archive/2006/Apr/21-578128.html
11. http://www.opcw.org/html/db/cwc/eng/cwc_frameset.html
12. http://www.opcw.org/docs/csp8_nat_statements/USA.pdf
13. http://www.fas.org/nuke/guide/usa/cbw/cw.htm
14. http://news.bbc.co.uk/2/hi/americas/3126141.stm
15. http://www.fas.org/nuke/guide/summary.htm
16. http://www.thebulletin.org/issues/nukenotes/mj04nukenote.html]
17. http://www.thebulletin.org/issues/nukenotes/mj04nukenote.html
★
Obtain Microbial Seed Stock for Standard or Novel Agent Michael Barletta and Christina Ellington
★
BW Agents Center for Nonproliferation Studies
★
Draft NSDM re United States Policy on Warfare Program and Bacteriological/Biological Research Program Henry A. Kissinger ''Note: Declassified United States Government Document''
★
Naval Armed Guard Service: Tragedy at Bari, Italy on 2 December 1943 ''Note — Original Source: Office of the Chief of Naval Operations. "History of the Armed Guard Afloat, World War II." (Washington, 1946): 166-169.''
★
German Raid on Bari, , Eric, Niderost, World War II, ''Note —
Original URL redirected to the URL shown here; article lacks date or volume reference.''
See also
★
Enduring Stockpile - the name of the United States's remaining arsenal of nuclear weapons following the end of the Cold War.
★
Operation Paperclip - the codename under which the US intelligence and military services extricated scientists from Germany, during and after the final stages of World War II.
External links
★
"Iraq links germs for weapons to U.S. and France" by Philip Shenon, "The New York Times",
March 16,
2003 late edition final, section 1, p. 18, retrieved
October 8,
2006
★
United States Nuclear Forces Guide
★
Abolishing Weapons of Mass Destruction: Addressing Cold War and Other Wartime Legacies in the Twenty-First Century By Mikhail S. Gorbachev
★
Nuclear Threat Initiative on United States (note: wrongfully writes that the original commitment to destroy all chemical weapons was for 2004 although this deadline was only for 45% of the stockpiles)
★
Nuclear testing history
★
U.S. Army Chemical Weapons Agency website
★
Map of US WMD's from NY Indymedia
★
Nuclear Notebook: U.S. Nuclear Forces, 2006, by Robert S. Norris and Hans M. Kristensen. ''Bulletin of the Atomic Scientists'', January/February 2006.
★
"Lessons Lost," by Joseph Cirincione. ''Bulletin of the Atomic Scientists'', November/December 2005.
★
Nuclear Files.org Current information on nuclear stockpiles in the United States
★
U.S. Nuclear Weapons in Europe: New report provides unprecedented details Nukestrat, February 2005
★
Timeline: United States and Chemical Weapons Posted at
Center for Cooperative Research
★
Timeline: United States and Biological Weapons Posted at
Center for Cooperative Research
★
Putin: U.S. pushing others into nuclear ambitions (February 2007)
★
New nuclear warhead design for US
★
U.S. government settles on design for new nuclear warheads
★
US announces plans to build new nuclear warheads
★
U.S. picks design for new generation of nuclear warheads
★
Bush administration picks Lawrence Livermore warhead design
★
Trends in U.S. Nuclear Policy - analysis by William C. Potter, IFRI Proliferation Papers n°11, 2005