Iran and weapons of mass destruction
Iran is not known to currently possess weapons of mass destruction (WMD) and has signed treaties repudiating the possession of WMDs including the Biological Weapons Convention, the Chemical Weapons Convention, and the Non-Proliferation Treaty (NPT). Iran has first-hand knowledge of WMD effects—over 100,000 Iranian troops and civilians were victims of chemical weapons during the 1980s Iran–Iraq War. In 2003 the Supreme Leader of Iran, Ayatollah Ali Khamenei, along with other clerics, issued a public and categorical religious decree ("fatwa") against the development, production, stockpiling and use of nuclear weapons, though  it is approved by some relatively minor clerics. Later versions of this fatwa forbid only the "use" of nuclear weapons, but said nothing about their production. Iran has stated its uranium enrichment program is exclusively for peaceful purposes. The IAEA has confirmed the non-diversion of declared nuclear material in Iran but has also said it "needs to have confidence in the absence of possible military dimensions to Iran’s nuclear program." In December 2014, a Wisconsin Project on Nuclear Arms Control report by Lincy and Milhollin based on IAEA data concluded that Iran could produce enough weapons-grade uranium  for one nuclear warhead in 1.7 months. In 2012, sixteen U.S. intelligence agencies, including the CIA, reported that Iran was pursuing research that could enable it to produce nuclear weapons, but was not attempting to do so. The senior officers of all of the major American intelligence agencies stated that there was no conclusive evidence that Iran has made any attempt to produce nuclear weapons since 2003. In a 2007 National Intelligence Estimate, the United States Intelligence Community assessed that Iran had ended all "nuclear weapon design and weaponization work" in 2003. Then U.S. Defense Secretary Leon Panetta stated in  January 2012 that Iran was pursuing a nuclear weapons capability, but was not attempting to produce nuclear weapons. In 2009, U.S. intelligence assessed that Iranian intentions were unknown. Some European intelligence believe Iran has resumed its alleged nuclear weapons design work. In 2011 then Russian Prime Minister Vladimir Putin said he had seen no evidence of any nuclear weapons program in Iran, while at the same time then Russian President Dmitry Medvedev said Iran was close to having the capability to produce nuclear weapons. Iran has called for nuclear weapons states to disarm and for the Middle East to be  a nuclear weapon free zone. After the IAEA voted in a rare non-consensus decision to find Iran in non-compliance with its NPT Safeguards Agreement and to report that non-compliance to the UN Security Council, the Council demanded that Iran suspend its nuclear enrichment activities and imposed sanctions against Iran when Iran refused to do so. Former Iranian President Mahmoud Ahmadinejad argued that the sanctions were illegal. The IAEA has been able to verify the non-diversion of declared nuclear material in Iran, but not the absence of undeclared activities. The Non-Aligned Movement has called on both  sides to work through the IAEA for a solution. In November 2009, the IAEA Board of Governors adopted a resolution against Iran which urged Iran to apply the modified Code 3.1 to its Safeguard Agreement, urged Iran to implement and ratify the Additional Protocol, and expressed "serious concern" that Iran had not cooperated on issues that needed "to be clarified to exclude the possibility of military dimensions to Iran's nuclear program." Iran said the "hasty and undue" resolution would "jeopardize the conducive environment vitally needed" for successful negotiations. Nuclear weapons. Overview. In September 2005, the IAEA Board of Governors , in a rare non-consensus decision with 12 abstentions, recalled a previous Iranian "policy of concealment" regarding its enrichment program<ref name="IAEA-GOV/2003/75"></ref> and found that Iran had violated its NPT Safeguards Agreement.<ref name="IAEA-GOV/2005/77"></ref> Another IAEA report stated "there is no evidence that the previously undeclared nuclear material and activities ... were related to a nuclear weapons program." Iran has claimed that the military threat posed by Israel and the United States is forcing it to restrict the release of information on its nuclear program. Gawdat Bahgat of the National Defense University speculates that Iran may have  a lack of confidence in the international community which was reinforced when many nations, under pressure from the United States, rejected or withdrew from signed commercial deals with the Iranian nuclear authority. On 31 July 2006, the UN Security Council passed a resolution demanding Iran suspend its enrichment program. On 23 December 2006, the Security Council imposed sanctions against Iran, which were tightened on 24 March 2007, because Iran refused to suspend enrichment. Iran's representative to the UN argued that the sanctions compelled Iran to abandon its rights under the NPT to peaceful nuclear technology. The Non-Aligned Movement  called on both sides to work through the IAEA for a solution. US intelligence predicted in August 2005 that Iran could have the key ingredients for a nuclear weapon by 2015. On 25 October 2007, the United States declared the Revolutionary Guards a "proliferator of weapons of mass destruction", and the Quds Force a "supporter of terrorism". Iran responded that "it is incongruent for a country [US] who itself is a producer of weapons of mass destruction to take such a decision." Mohamed ElBaradei, director of the IAEA at the time, said he had no evidence Iran was building nuclear  weapons and accused US leaders of adding "fuel to the fire" with their rhetoric. Speaking in Washington in November 2007, days before the IAEA was to publish its latest report, Israeli Deputy Prime Minister Shaul Mofaz called for ElBaradei to be sacked, saying: "The policies followed by ElBaradei endanger world peace. His irresponsible attitude of sticking his head in the sand over Iran's nuclear programme should lead to his impeachment." Israel and some western governments fear Iran is using its nuclear programme as a covert means to develop weapons, while Iran says it is aimed solely at producing electricity . For its part in the conflict-ridden Middle East, Israel is a member of the IAEA, but it is not itself a signatory to the Nuclear Non-Proliferation Treaty, and is widely believed to currently be the only nuclear-armed state in the region. History. Iran's nuclear program began as a result of the Cold War alliance between the United States and the Shah of Iran, Mohammad Reza Pahlavi, who emerged as an important US ally in the Persian Gulf. Under the Atoms for Peace program, Iran received basic nuclear research facilities from the United States. In return, Tehran  signed the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) in 1968. Fueled by high oil prices in the 1970s, Iran sought to purchase large-scale nuclear facilities from Western suppliers in order to develop nuclear power and fuel-cycle facilities with both civilian and potential military applications. In March 1974, the shah established the Atomic Energy Organization of Iran (AEOI). Sensing a heightened risk of nuclear proliferation, the United States convinced Western allies to limit the export of nuclear fuel-cycle facilities to Iran. Supreme Leader Ayatollah Ruhollah Khomeini, whose revolution displaced the Shah's monarchy in 1979  and ruled the newly established Islamic Republic of Iran until his death in 1989, placed little emphasis on nuclear weapons development because it was viewed as a suspicious Western innovation. During that time, many of Iran's top scientists fled the country while the United States organized an international campaign to block any nuclear assistance to Iran. Following the death of Ayotollah Khomeini, the leadership of President Ali Akbar Hashemi Rafsanjani and Supreme Leader Ali Hosseini Khamenei sought to revive Iran's overt nuclear civilian program and expand undeclared nuclear activities during the 1990s. According to a strategic dossier from  International Institute for Strategic Studies, Iran turned away from Western suppliers and obtained nuclear assistance from Russia and China in a number of key areas, including uranium mining, milling and conversion, as well as technology for heavy-water research reactors. However, Washington intervened with Moscow and Beijing to prevent Iran from fully acquiring its list of nuclear power and fuel-cycle facilities. The 1990s also saw Iran expand its furtive nuclear research into conversion, enrichment and plutonium separation. "Most importantly, on the basis of additional centrifuge assistance from the A.Q. Khan network, Iran was able to begin the construction of  pilot-scale and industrial-scale enrichment facilities at Natanz around 2000." Full exposure of Iran's nuclear activities came in 2002, when an Iranian exiled opposition group, the National Council of Resistance of Iran (NCRI) declared the Natanz project in August of that year. Since that time, international pressure on Iran has remained steady, hampering but not halting the country's nuclear development. Iran remains legally bound to the NPT and states its support for the treaty. There are various estimates of when Iran might be able to produce a nuclear weapon, should it choose to do so: IAEA. The  International Atomic Energy Agency (IAEA) is an autonomous international organization that seeks to promote the peaceful use of nuclear energy and to inhibit its use for military purposes. On 6 March 2006, the IAEA Secretariat reported that ""the Agency has not seen indications of diversion of nuclear material to nuclear weapons or other nuclear explosive devices ... however, after three years of intensive verification, there remain uncertainties with regard to both the scope and the nature of Iran's nuclear programme"". However, the inspectors did find some sensitive documents, including instructions and diagrams on how to make uranium into a sphere , which is only necessary to make nuclear weapons. Iran furnished the IAEA with copies, claiming not to have used the information for weapons work, which it had obtained along with other technology and parts in 1987 and the mid-1990s. It is thought this material was sold to them by Abdul Qadeer Khan, though the documents did not have the necessary technical details to actually manufacture a bomb. On 18 December 2003, Iran voluntarily signed, but did not ratify or bring into force, an Additional Protocol that allows IAEA inspectors access to individuals, documentation relating to procurement, dual-use equipment, certain  military-owned workshops, and research and development locations.<ref name="IAEA-GOV/2005/87"></ref> Iran agreed voluntarily to implement the Additional Protocol provisionally, however when the IAEA reported Iran's non-compliance to the United Nations Security Council on 4 February 2006 Iran withdrew from its voluntary adherence to the Additional Protocol. On 12 May 2006, claims that highly enriched uranium (well over the 3.5% enriched level) was reported to have been found "at a site where Iran has denied such sensitive atomic work", appeared. "They have found particles of highly enriched uranium [HEU], but it is not clear if this is contamination  from centrifuges that had been previously found [from imported material] or something new," said one diplomat close to the UN International Atomic Energy Agency (IAEA). These reports have not yet been officially confirmed by the IAEA (as of 1 June 2006). On 31 July 2006, the United Nations Security Council passed a resolution demanding that Iran suspend its uranium enrichment activities. In late 2006, "New traces of plutonium and enriched uranium– potential material for atomic warheads– have been found [by the IAEA] in a nuclear waste facility in Iran." However, "A senior U.N. official who was familiar with the report  cautioned against reading too much into the findings of traces of highly enriched uranium and plutonium, saying Iran had explained both and they could plausibly be classified as byproducts of peaceful nuclear activities." In 2007 these traces were determined to have come from leaking used highly enriched uranium fuel from the Tehran Research Reactor, which the U.S. supplied to Iran in 1967, and the matter was closed.<ref name="IAEA-GOV/2007/48"></ref> In July 2007 the IAEA announced that Iran has agreed to allow inspectors to visit its Arak nuclear plant, and by August 2007 a plan for monitoring the Natanz uranium  enrichment plant will have been finalised. In August 2007 the IAEA announced that Iran has agreed to a plan to resolve key questions regarding its past nuclear activities. The IAEA described this as a "significant step forward". In September 2007 the IAEA announced it has been able to verify that Iran's declared nuclear material has not been diverted from peaceful use. While the IAEA has been unable to verify some "important aspects" regarding the nature and scope of Iran's nuclear work, the agency and Iranian officials agreed on a plan to resolve all outstanding issues, Director-General Mohamed  ElBaradei said at the time. In an interview with Radio Audizioni Italiane the same month, ElBaradei remarked that "Iran does not constitute a certain and immediate threat for the international community". In October 2007, ElBaradei amplified these remarks, telling Le Monde that, even if Iran did intend to develop a nuclear bomb, they would need "between another three and eight years to succeed". He went on to note that "all the intelligence services" agree with this assessment and that he wanted to "get people away from the idea that Iran will be a threat from tomorrow, and that we are  faced right now with the issue of whether Iran should be bombed or allowed to have the bomb". In late October 2007, according to the International Herald Tribune, the former head of the IAEA, Mohamed ElBaradei, stated that he had seen "no evidence" of Iran developing nuclear weapons. The IHT quoted ElBaredei as stating that, "We have information that there has been maybe some studies about possible weaponization," said Mohamed ElBaradei, who led the International Atomic Energy Agency. "That's why we have said that we cannot give Iran a pass right now, because there is still a lot  of question marks." "But have we seen Iran having the nuclear material that can readily be used into a weapon? No. Have we seen an active weaponization program? No." The IHT report went on to say that "ElBaradei said he was worried about the growing rhetoric from the U.S., which he noted focused on Iran's alleged intentions to build a nuclear weapon rather than evidence the country was actively doing so. If there is actual evidence, ElBaradei said he would welcome seeing it." In November 2007 ElBaradei circulated a report to the upcoming meeting of the IAEA Board of  Governors.<ref name="IAEA-GOV/2007/58"></ref> Its findings conclude that Iran has made important strides towards clarifying its past activities, including provided access to documentation and officials involved in centrifuge design in the 1980s and 1990s. Answers provided by Iran regarding the past P-1 and P-2 centrifuge programs were found to be consistent with the IAEA's own findings. However, Iran has ignored the demands of the UN Security council, and has continued to enrich uranium in the past year. The IAEA is not able to conclusively confirm that Iran isn't currently enriching uranium for military purposes, as its inspections have  been restricted to workshops previously declared as part of the civilian uranium enrichment program, and requests for access to certain military workshops have been denied; the report noted that "As a result, the agency's knowledge about Iran's current nuclear program is diminishing". The report also confirmed that Iran now possesses 3000 centrifuges, a 10-fold increase over the past year, though the feed rate is below the maximum for a facility of this design. Data regarding the P-2 centrifuge, which Ahmadinejad has claimed will quadruple production of enriched uranium, was provided only several days before the report was  published; the IAEA plan to discuss this issue further in December. In response to the report the US has vowed to push for more sanctions, whilst Iran has called for an apology from the US. In his final November 2009 statement to the IAEA Board of Governors, Mohamed ElBaradei said the Agency continued to verify the non-diversion of declared nuclear material in Iran, but that other issues of concern had reached a "dead end" unless Iran were to fully cooperate with the agency. ElBaradei stated it would be helpful if "we were able to share with Iran more of  the material that is at the centre of these concerns", and also said it would be helpful if Iran fully implemented the Subsidiary Arrangements to its Safeguards Agreement and fully implemented the Additional Protocol. ElBaradei said Iran's failure to report the existence of a new fuel enrichment facility until September 2009 was inconsistent with its obligations under the Subsidiary Arrangements to its Safeguards Agreement. ElBaradei closed by saying international negotiations represented a "unique opportunity to address a humanitarian need and create space for negotiations". On 18 February 2010 the IAEA released a new report on Iran's nuclear program . Ivan Oelrich and Ivanka Barzashka, writing in the "Bulletin of the Atomic Scientists", suggested "the media has seriously misrepresented the actual contents of the report" and that "in fact, no new information has been revealed." They wrote that there was "no independent assessment that Iran is engaged in weapons work" and that this was "hardly the first time that the agency has discussed potential evidence of Tehran's nuclear weapons research". Iran's envoy to the UN atomic watchdog criticized Western powers for interpreting the IAEA report in an "exaggerated, selective and inaccurate" manner. In an April 2010 interview with  the BBC, former IAEA Director General ElBaradei said Western nations were seeking harsher sanctions "out of frustration". "I don't think Iran is developing, or we have new information that Iran is developing, a nuclear weapon today .. there is a concern about Iran's future intentions, but even if you talk to MI6 or the CIA, they will tell you they are still four or five years away from a weapon. So, we have time to engage," he said. ElBaradei further said the building of trust between the parties would "not happen until the two sides sit around the negotiating  table and address their grievances. Sooner or later that will happen." Alleged weaponization studies. Former IAEA Director General ElBaradei said in 2009 that the agency had been provided with "no credible evidence" that Iran is developing nuclear weapons, but the "New York Times" reported in January 2009 that the IAEA is investigating U.S. allegations "Project 110" and "Project 111" could be names for Iranian efforts for designing a nuclear warhead and making it work with an Iranian missile. "We are looking to those suppliers of information to help us on the question of authenticity, because that is really a major  issue. It is not an issue that involves nuclear material; it's a question of allegations," ElBaradei further said. ElBaradei has strongly denied reports that the agency had concluded Iran had developed technology needed to assemble a nuclear warhead, when a November 2009 article in The Guardian said the allegations included Iran's weapon design activities using two-point implosion designs. The "New York Times" article cited classified US intelligence reports asserting that Professor Mohsen Fakhrizadeh is in charge of the projects, while Iranian officials assert these projects are a fiction made up by the United States. The article further  reported that "while the international agency readily concedes that the evidence about the two projects remains murky, one of the documents it briefly displayed at a meeting of the agency's member countries in Vienna last year, from Mr. Fakrizadeh's projects, showed the chronology of a missile launching, ending with a warhead exploding about 650 yards above ground – approximately the altitude from which the bomb dropped on Hiroshima was detonated." Gordon Oehler, who ran the CIA's nonproliferation center and served as deputy director of the presidential commission on weapons of mass destruction, wrote "if someone has a good  idea for a missile program, and he has really good connections, he'll get that program through.. But that doesn't mean there is a master plan for a nuclear weapon." Outside experts note that the parts of the report made public lack many dates associated with Iran's alleged activities meaning it is possible Iran had a Project 110 at one time, but scrapped it as US intelligence insists. The "Washington Post" reported that "nowhere are there construction orders, payment invoices, or more than a handful of names and locations possibly connected to the projects." Former IAEA Director ElBaradei  said the Agency didn't have any information that nuclear material has been used and didn't have any information that any components of nuclear weapons had been manufactured. Iran has asserted that the documents are a fabrication, while the IAEA has urged Iran to be more cooperative and Member States to provide more information about the allegations to be shared with Iran. In August 2009 an article in the Israeli newspaper Haaretz alleged that ElBaradei had "censored" evidence obtained by IAEA inspectors over the preceding few months. ElBaradei has angrily rejected claims from Israel, France and the US that  he had suppressed the internal IAEA report, saying all relevant and confirmed information had been presented to member states. ElBaradei said he and the Agency have repeatedly said the rumors of censorship were "totally baseless, totally groundless. All information that we have received that has been vetted, assessed in accordance with our standard practices, has been shared with the Board." On 16 November 2009 the Director General provided a report to the Board of Governors. The report stated "there remain a number of outstanding issues which give rise to concerns, and which need to be clarified to exclude the existence  of possible military dimensions to Iran's nuclear programme." "The Agency is still awaiting a reply from Iran to its request to meet relevant Iranian authorities in connection with these issues", the report said. The report further said, "it would be helpful if Member States which have provided documentation to the Agency would agree to share more of that documentation with Iran, as appropriate." Russia has denied allegations of "continued Russian assistance to Iran's nuclear weapons program" as "totally groundless" and said the November 2009 IAEA report reaffirmed the absence of a military component in Iran's efforts in  the nuclear field. In December 2009, "The Times" claimed that a document from an unnamed Asian intelligence agency described the use of a neutron source which has no use other than in a nuclear weapon, and claimed the document appeared to be from an office in Iran's Defense Ministry and may have been from around 2007. Norman Dombey, professor emeritus of theoretical physics at Sussex University, wrote in that "nothing in the published 'intelligence documents' shows Iran is close to having nuclear weapons" and argued that it is "unlikely that nuclear weapon projects would be distributed among several universities , or weapon parts marketed to research centres." A senior U.N. official who saw the document said it may or may not be authentic, that it was unclear when the document was written, and that it was unclear whether any experiments had ever actually been performed. The C.I.A. did not declare whether it believes the document was real, and European spy agencies also did not give any authentication to the document. Western intelligence agencies said that, if genuine, it was unclear whether the paper provided any new insights into the state of Iranian weapons research. "It's very troubling – if real ," said Thomas B. Cochran, a senior scientist in the nuclear program of the Natural Resources Defense Council. The Institute for Science and International Security, said that it "urges caution and further assessment" of the document and noted that "the document does not mention nuclear weapons .. and we have seen no evidence of an Iranian decision to build them." Anton Khlopkov, the founding director of the Center for Energy and Security Studies, said the media leak may be being used "as a pretext for inciting the campaign against Iran." Former Russian Prime Minister Yevgeny Primakov has also said after the public  publications of the documents "Russia has no concrete information that Iran is planning to construct a weapon". Russia's representative to the IAEA, Alexander Zmeyevskiy, has noted that though the IAEA is in possession of these documents, the IAEA's findings "do not contain any conclusions about the presence of undeclared nuclear activities in Iran." Iran pointed out the claims had not been verified by the International Atomic Energy Agency and argued that "some countries are angry that our people defend their nuclear rights." "I think that some of the claims about our nuclear issue have turned into a repetitive  and tasteless joke," Iranian President Mahmoud Ahmadinejad said in response to the documents. Iranian stance. Iran states that the purpose of its nuclear program is the generation of power and that any other use would be a violation of the Nuclear Non-Proliferation Treaty, of which it is a signatory, as well as being against Islamic religious principles. Iran claims that nuclear power is necessary for a booming population and rapidly industrialising nation. It points to the fact that Iran's population has more than doubled in 20 years, the country regularly imports gasoline and electricity, and that burning fossil  fuel in large amounts harms Iran's environment drastically. Additionally, Iran questions why it shouldn't be allowed to diversify its sources of energy, especially when there are fears of its oil fields eventually being depleted. It continues to argue that its valuable oil should be used for high value products and export, not simple electricity generation. Furthermore, Iran argues that nuclear power makes fairly good economic sense. Building reactors is expensive, but subsequent operating costs are low and stable, and increasingly competitive as fossil-fuel prices rise. Iran also raises funding questions, claiming that developing the excess capacity in  its oil industry would cost it $40 billion, not to speak of paying for the power plants. Harnessing nuclear power costs a fraction of this, considering Iran has abundant supplies of accessible uranium ore. These claims have been echoed by Scott Ritter, the former UN weapons inspector in Iraq. Roger Stern, of Johns Hopkins Department of Geography and Environmental Engineering, agrees "Iran's claims to need nuclear power could be genuine". Iran states it has a legal right to enrich uranium for peaceful purposes under the NPT, and further says that it "has constantly complied with its obligations under  the NPT and the Statute of the International Atomic Energy Agency". Twelve other countries are known to operate uranium enrichment facilities. Iran states that "the failure of certain Nuclear- Weapon States to fulfill their international obligations continue to be a source of threat for the international community". Iran also states that "the only country that has ever used nuclear weapons still maintains a sizable arsenal of thousands of nuclear warheads" and calls for a stop to the transfer of technology to non-NPT states. Iran has called for the development of a follow-up committee to ensure compliance with global  nuclear disarmanent. Iran and many other nations without nuclear weapons have said that the present situation whereby Nuclear Weapon States monopolise the right to possess nuclear weapons is "highly discriminatory", and they have pushed for steps to accelerate the process of nuclear disarmament. Iran has criticized the European Union because it believes it has taken no steps to reduce the danger of nuclear weapons in the Middle East. Iran has called on the state of Israel to sign the NPT, accept inspection of its nuclear facilities, and place its nuclear facilities under IAEA safeguards. Iran has proposed that the Middle  East be established as a proposed Nuclear Weapon Free Zone. On 3 December 2004, Iran's former president and an Islamic cleric, Akbar Hashemi Rafsanjani alluded to Iran's position on nuclear energy: God willing, we expect to soon join the club of the countries that have a nuclear industry, with all its branches, except the military one, in which we are not interested. We want to get what we're entitled to. I say unequivocally that for no price will we be willing to relinquish our legal and international right. I also say unequivocally to those who make false  claims: Iran is not pursuing nuclear weapons, but it will not give up its rights. Your provocation will not make us pursue nuclear weapons. We hope that you come to your senses soon and do not get the world involved in disputes and crises. On 14 November 2004, Iran's chief nuclear negotiator said that his country agreed to voluntarily and temporarily suspend the uranium enrichment program after pressure from the European Union on behalf of the United Kingdom, France and Germany, as a confidence-building measure for a reasonable period of time, with six months mentioned as a reference . Iranian president Mahmoud Ahmadinejad has publicly stated Iran is not developing nuclear weapons. On 9 August 2005 Iran's Supreme Leader, Ayatollah Ali Khamenei, issued a fatwa that the production, stockpiling and use of nuclear weapons are forbidden under Islam and that Iran shall never acquire these weapons. The text of the fatwa has not been released although it was referenced in an official statement at a meeting of the International Atomic Energy Agency (IAEA) in Vienna. Iranian President Mahmoud Ahmadinejad in a 2005 speech to the U.N. General Assembly said "We are concerned that once certain powerful states completely  control nuclear energy resources and technology, they will deny access to other states and thus deepen the divide between powerful countries and the rest of the international community ... peaceful use of nuclear energy without possession of a nuclear fuel cycle is an empty proposition". On 6 August 2005, Iran rejected a 34-page European Union proposal intended to help Iran build "a safe, economically viable and proliferation-proof civil nuclear power generation and research program." The Europeans, with US agreement, intended to entice Iran into a binding commitment not to develop uranium enrichment capability by offering to provide fuel and  other long-term support that would facilitate electricity generation with nuclear energy. Iranian Foreign Ministry spokesman Hamid Reza Asefi rejected the proposal saying, "We had already announced that any plan has to recognize Iran's right to enrich uranium". After the Iranian Revolution, Germany halted construction of the Bushehr reactor, the United States cut off supply of highly enriched uranium (HEU) fuel for the Tehran Research Reactor, and Iran never received uranium from France which it asserted it was entitled to. Russia agreed not to provide an enrichment plant and terminated cooperation on several other nuclear-related technologies, including laser  isotope separation; China terminated several nuclear projects (in return, in part for entry into force of a U.S.-China civil nuclear cooperation agreement); and Ukraine agreed not to provide the turbine for Bushehr. Iran argues that these experiences contribute to a perception that foreign nuclear supplies are potentially subject to being interrupted. Iran resumed its uranium enrichment program in January 2006, prompting the IAEA to refer the issue to the UN Security Council. On 21 February 2006, Rooz, a news website run by Iranian exiles (the Fedayeen Khalq [People's Commandos] leftist terrorist group), reported that Hojatoleslam Mohsen Gharavian, a student  of Qom's fundamentalist cleric Mesbah Yazdi, spoke about the necessity of using nuclear weapons as a means to retaliate and announced that "based on religious law, everything depends on our purpose". In an interview with the Islamic Republic News Agency the same day, Gharavian rejected these reports, saying "We do not seek nuclear weapons and the Islamic religion encourages coexistence along with peace and friendship...these websites have tried to misquote me." On 11 April 2006, Iranian President Mahmoud Ahmadinejad announced Iranian scientists working at the pilot facility at Natanz had successfully enriched uranium to the 3.5 percent level , using a small cascade of 164 gas centrifuges. In the televised address from the city of Mashhad he said, "I am officially announcing that Iran has joined the group of those countries which have nuclear technology". In May 2006 some members of the Iranian legislature ("Majlis" or Parliament) sent a letter to UN Secretary-General Kofi Annan threatening to withdraw from the NPT if Iran's right to peaceful use of nuclear technology under the treaty was not protected. On 21 February 2007, the same day the UN deadline to suspend nuclear activities expired, Mahmoud Ahmadinejad made the following statement : "If they say that we should close down our fuel production facilities to resume talks, we say fine, but those who enter talks with us should also close down their nuclear fuel production activities". The White House's spokesperson Tony Snow rejected the offer and called it a "false offer". Iran has said that U.N. Security Council sanctions aimed at curtailing its uranium-enrichment activities unfairly target its medical sector. "We have thousands of patients a month at our hospital alone .. If we can't help them, some will die. It's as simple as that," said an Iranian nuclear  medicine specialist. An Iranian Jew from California claimed "I don't believe in these sanctions... They hurt normal people, not leaders. What is the use of that?" Vice President of the Atomic Energy Organization of Iran Ghannadi framed the debate as a humanitarian issue, "This is about human beings. . . . When someone is sick, we should give medicine." Iran informed the International Atomic Energy Agency (IAEA) that fuel obtained from Argentina in 1993 would run out by the end of 2010, and that it could produce the uranium itself or buy the uranium from abroad. In February 2010, to refuel the  Tehran Research Reactor which produces medical isotopes, Iran began using a single cascade to enrich uranium "up to 19.8%", to match the previously foreign supplied fuel.<ref name="INFCIRC/97/Add.2"></ref> 20% is the upper threshold for low enriched uranium (LEU). Though HEU enriched to levels exceeding 20% is considered technically usable in a nuclear explosive device, this route is much less desirable because far more material is required to achieve a sustained nuclear chain reaction. HEU enriched to 90% and above is most typically used in a weapons development program. In an interview in October 2011, President Ahmadinejad of Iran said : "We have already expressed our views about nuclear bombs. We said those who are seeking to build nuclear bombs or those who stockpile, they are politically and mentally retarded. We think they are stupid because the era of nuclear bombs is over. [Why] for example, should Iran continue its efforts and tolerate all international treasures only to build a nuclear bomb, or a few nuclear bombs that are useless? They can never be used!" On 22 February 2012, in a meeting in Tehran with the director and officials of the Atomic Energy Organization of Iran (AEOI) and nuclear scientists, Leader  of the Islamic Revolution Ayatollah Seyyed Ali Khamenei said: "The Iranian nation has never pursued and will never pursue nuclear weapons. There is no doubt that the decision makers in the countries opposing us know well that Iran is not after nuclear weapons because the Islamic Republic, logically, religiously and theoretically, considers the possession of nuclear weapons a grave sin and believes the proliferation of such weapons is senseless, destructive and dangerous." Other international responses. United Nations. In 2009, the United Nations built a seismic monitoring station in Turkmenistan near its border with Iran, to detect tremors from nuclear explosions . The UN Security Council has demanded Iran freeze all forms of uranium enrichment. Iran has argued these demands unfairly compel it to abandon its rights under the Nuclear NonProliferation Treaty to peaceful nuclear technology for civilian energy purposes. On 29 December 2009, Zongo Saidou, a sanctions advisor for the U.N., said that as far as he knew, none of the U.N.'s member nations had alerted the sanctions committee about allegations of sales of uranium to Iran from Kazakhstan. "We don't have any official information yet regarding this kind of exchange between the two countries," Saidou said. "I do n't have any information; I don't have any proof," Saidou said. An intelligence report from an unknown country alleged that rogue employees of Kazakhstan were prepared to sell Iran 1,350 tons of purified uranium ore in violation of UN Security Council sanctions. Russia said it had no knowledge of an alleged Iranian plan to import purified uranium ore from Kazakhstan. Kazakhstan denied the reports. "Such fabrications of news are part of the psychological warfare (against Iran) to serve the political interests of the hegemonic powers," Iran said. Askar Abdrahmanov, the official representative of the Ministry for Foreign Affairs of  Kazakhstan, said "the references to the anonymous sources and unknown documents show groundlessness of these insinuations." China. The Chinese Foreign Ministry supports the peaceful resolution of the Iran nuclear issue through diplomacy and negotiations. In May 2006 Chinese Foreign Ministry spokesperson Liu Jianchao stated "As a signatory to the Non-Proliferation Treaty, Iran enjoys the right to peaceful use of nuclear power, but it should also fulfil its corresponding responsibility and commitment". He added "It is urgently needed that Iran should fully cooperate with the IAEA and regain the confidence of the international community in its nuclear program". In April  2008, several news agencies reported that China had supplied the IAEA with intelligence on Iran's nuclear program following a report by Associated Press reporter George Jahn based on anonymous diplomatic sources. Chinese Foreign Ministry spokesperson Jiang Yu described these reports as "completely groundless and out of ulterior motives". In January 2010, China reiterated its calls for diplomatic efforts on the Iran nuclear issue over sanctions. "Dialogue and negotiations are the right ways of properly solving the Iran nuclear issue, and there is still room for diplomatic efforts," said Chinese spokesperson Jiang Yu. "We hope the relevant parties take more  flexible and pragmatic measures and step up diplomatic efforts in a bid to resume talks as soon as possible," said Jiang. In September 2011 Israeli newspaper Haaretz reported several statements about Iran's nuclear program and China's foreign policy in the Middle East, made by independent Chinese expert on the Middle East who recently visited Israel at the invitation of "Signal", an organization that furthers academic ties between Israel and China. Yin Gang of the Chinese Academy of Social Sciences has expressed his opinion on China policies toward region, and according to Haaretz "he made surprising statement": "China is  opposed to any military action against Iran that would damage regional stability and interfere with the flow of oil. But China will not stop Israel if it decides to attack Iran. For all these reasons, Israel and the Middle East need a country like China. Israel needs China's power." In March 2012, Chinese Foreign Minister Yang Jiechi said that "China is opposed to any country in the Middle East, including Iran, developing and possessing nuclear weapons.", adding that Iran nonetheless has the right to pursue nuclear activities for peaceful purposes. France. On 16 February 2006 French Foreign Minister Philippe  Douste-Blazy said "No civilian nuclear programme can explain the Iranian nuclear programme. It is a clandestine military nuclear programme." In January 2007, former French President Jacques Chirac, speaking "off the record" to reporters from The New York Times, indicated that if Iran possessed a nuclear weapon, the weapon could not be used. Chirac alluded to mutually assured destruction when he stated: "Where will it drop it, this bomb? On Israel? It would not have gone 200 meters into the atmosphere before Tehran would be razed." Russia. In 2005, Russian Advisor to Minister of Atomic Energy Lev Ryabev asserted that  neither the signing by Iran of the NPT, the adoption of the Additional Protocol (which provides for the right of inspection of any facility at any time with no prior notice), placement of nuclear facilities under IAEA safeguards, nor Russia's and Iran's commitments to repatriate spent nuclear fuel to Russia is seen as a good enough argument by the United States. Ryabev argued that "at the same time, such requirements are not imposed on, for example, Brazil, which has been developing its nuclear power industry and nuclear fuel cycle, including uranium enrichment." On 5 December 2007 Russian Foreign  Minister Sergey Lavrov said he had seen no evidence of any nuclear weapons program in Iran, no matter how old. On 16 October 2007 Vladimir Putin visited Tehran, Iran to participate in the Second Caspian Summit, where he met with Iranian leader Mahmoud Ahmadinejad. At a press conference after the summit Putin said that "Iran has the right to develop their peaceful nuclear programs without any restrictions". In 2009, Russian Major-General Pavel S. Zolotarev argued Iran's security could be partially be assured by supplying Iran with modern missile and air defense systems and offering for Iran to take  part in the work of one of the data exchange centers in exchange for "concrete non-proliferation obligations". In May 2009, the EastWest Institute released a joint U.S.-Russian Threat Assessment on Iran's Nuclear and Missile Potential. The report concluded that there was "no IRBM/ICBM threat from Iran and that such a threat, even if it were to emerge, is not imminent." The report said there was no specific evidence that Iran was seeking the ability to attack Europe and that "it is indeed difficult to imagine the circumstances in which Iran would do so." The report said if  Iran did pursue this capability, it would need six to eight years to develop a missile capable of carrying a 1,000 kilogram warhead 2,000 kilometers. The report said Iran ending "IAEA containment and surveillance of the nuclear material and all installed cascades at the Fuel Enrichment Plan" might serve as an early warning of Iranian intentions. In December 2009, Russian Foreign Minister Sergei Lavrov said that the Iran nuclear issue would be resolved by diplomatic methods exclusively. "It is absolutely clear that the problem can be settled exclusively by political and diplomatic methods and any other scenarios, especially use-of -force scenarios, are completely unacceptable," Lavrov said. Yevgeny Primakov, a former Russian prime minister considered the doyen of Moscow's Middle East experts, said he did "not believe that Iran had made a decision to acquire nuclear weapons. Russia has no concrete information that Iran is planning to construct a weapon. It may be more like Japan, which has nuclear readiness but does not have a bomb," Primakov said. In February 2012, Russian Prime Minister Vladimir Putin said that Russia opposes Iran developing nuclear-weapons capability. "Russia is not interested in Iran becoming a nuclear power. It would lead to  greater risks to international stability.", Putin said. United Kingdom. The United Kingdom is part of the EU3+3 (UK, France, Germany, US, China and Russia) group of countries that are engaged in ongoing discussions with Iran. The UK is therefore one of the countries that has stated that Iran would be provided with enriched fuel and support to develop a modern nuclear power program if it, in the words of the Foreign Office spokesperson ""suspends all enrichment related activities, answer all the outstanding issues relating to Iran's nuclear programme and implement the additional protocol agreed with the IAEA . The UK (with China, France, Germany and Russia) put forward the three Security Council resolutions that have been passed in the UN. On 8 May 2006, Former Deputy Commander-in-Chief of British Land Forces, General Sir Hugh Beach, former Cabinet Ministers, scientists and campaigners joined a delegation to Downing Street opposing military intervention in Iran. The delegation delivered two letters to Prime Minister Tony Blair from 1,800 physicists warning that the military intervention and the use of nuclear weapons would have disastrous consequences for the security of Britain and the rest of world. The letters carried the signatures of  academics, politicians and scientists including some of 5 physicists who are Nobel Laureates. CASMII delegation In 2006 Boris Johnson, then a member of Parliament, argued in his newspaper column that it was reasonable for Iran to seek nuclear weapons and that a nuclear-armed Iran could make the Middle East more stable. On assuming office he called for a new deal. Israel. Israel, which is not a party to the Nuclear Non-Proliferation Treaty and which is widely believed to possess nuclear weapons, has frequently claimed that Iran is actively pursuing a nuclear weapons program. Arguing an "existential threat from  Iran", Israel has issued several veiled and explicit threats to attack Iran. Mike Mullen, former chairman of the U.S. Joint Chiefs of Staff, has cautioned that an Israeli air attack on Iran would be high-risk and warned against Israel striking Iran. George Friedman, head of the global intelligence company Stratfor, has said Iran is "decades away" from developing any credible nuclear-arms capacity and that an attack on Iran would have grave repercussions for the global economy. If Iran ever did develop nuclear weapons, Israeli academic Avner Cohen said "that the prospect of a deliberate Iranian first nuclear strike  on Israel, an out-of the-blue scenario, is virtually nonexistent... [T]he chances of Iran – or for that matter any other nuclear power – unleashing a nuclear strike against Israel, which has nuclear capabilities itself, strike me as close to zero." Walter Pincus of the "Washington Post" has written that Israel's stance on nuclear arms complicates efforts against Iran. Gawdat Bahgat of the National Defense University believes Iran's nuclear program is partially formed on the potential threat of a nuclear Israel. Iran and the Arab League have proposed that the Middle East be established as a Nuclear Weapon Free  Zone. Israel said in May 2010 it would not consider taking part in nuclear weapon-free zone discussions or joining the Nuclear Nonproliferation Treaty. The UN Security Council has also pushed for a nuclear-weapon free zone in the Middle East, and has urged all countries to sign and adhere the 1970 Nuclear Nonproliferation Treaty. In May 2010, Israel reportedly deployed Dolphin class submarines with nuclear missiles capable of reaching any target in Iran in the Persian Gulf. Their reported missions were to deter Iran, gather intelligence, and to potentially land Mossad agents on the Iranian coast. In 2018, the  Israeli Prime Minister said that the Mossad seized about one hundred thousand documents of Iran's nuclear program. Netherlands. According to a Dutch newspaper, the Netherlands had launched an operation to infiltrate and sabotage the Iranian weapons industry, but ended the operation due to increasing fears of an American or Israeli attack on Iran's nuclear facilities. Muslim countries. The A.Q. Khan network, established to procure equipment and material for Pakistan's nuclear weapons program (gas-centrifuge-based programme), also supplied Iran with critical technology for its uranium enrichment program, and helped "put Iran on a fast track toward becoming  a nuclear weapons power." The 2008 Annual Arab Public Opinion Poll, Survey of the Anwar Sadat Chair for Peace and Development at the University of Maryland, College Park conducted in Egypt, Jordan, Lebanon, Morocco, Saudi Arabia and the UAE in March 2008 noted the following as a key finding. "In contrast with the fears of many Arab governments, the Arab public does not appear to see Iran as a major threat. Most believe that Iran has the right to its nuclear program and do not support international pressure to force it to curtail its program. A plurality of Arabs (44 %) believes that if Iran were to acquire nuclear weapons, the outcome would be more positive for the region than negative." Indonesia, the world's most populous Muslim-majority nation and a non-permanent member of the U.N. Security Council abstained from a vote in March 2008 on a U.N. resolution to impose a third set of sanctions on Iran. It was the only country out of the 10 non-permanent members to abstain. Indonesian President Susilo Bambang Yudhoyono speaking at a joint news conference with Iran's President Mahmoud Ahmadinejad in Tehran in March 2008 said "Iran's nuclear program  is of a peaceful nature and must not be politicized" Pakistan, which has the second largest Muslim population in the world is not a member of the Nuclear Non-Proliferation Treaty and already possesses nuclear weapons. On 12 May 2006 AP published an interview with Pakistan's former Chief of Army Staff of Pakistan Army General Mirza Aslam Beg In the AP interview, Beg detailed nearly 20 years of Iranian approaches to obtain conventional arms and then technology for nuclear weapons. He described an Iranian visit in 1990, when he was Chief of Army Staff. "They didn't want the  technology. They asked: 'Can we have a bomb?' My answer was: By all means you can have it but you must make it yourself. Nobody gave it to us." Beg said he is sure Iran has had enough time to develop them. But he insists the Pakistani government didn't help, even though he says former Prime Minister Benazir Bhutto once told him the Iranians offered more than $4 billion for the technology. In an article in 2005 about nuclear proliferation he stated "The San Francisco Chronicle" reported on 31 October 2003, that Grand Ayatollahs, like Ayatollah Yousef Sanei , and Iranian clerics led by Ayatollah Ali Khamenei have repeatedly declared that Islam forbids the development and use of all weapons of mass destruction. SFGate.com quoted Ayatollah Ali Khamenei as saying: On 21 April 2006, at a Hamas rally in Damascus, Anwar Raja, the Lebanon-based representative of the Popular Front for the Liberation of Palestine, a party that achieved 4.25% of the votes and holds 3 out the 132 seats in the Palestinian Legislative Council following the election declared: On 3 May 2006 Iraqi Shia cleric Ayatollah Ahmad Husseini Al Baghdadi, who opposes the presence of US forces in  Iraq and is an advocate of violent jihad was interviewed on Syrian TV. In his interview he said: Baku declaration. A declaration signed on 20 June 2006 by the foreign ministers of 56 nations of the 57-member Organisation of the Islamic Conference stated that "the only way to resolve Iran's nuclear issue is to resume negotiations without any preconditions and to enhance co-operation with the involvement of all relevant parties". Qatar and Arab vote against the U.N. Security Council resolution. 31 July 2006: The UN Security Council gives until 31 August 2006 for Iran to suspend all  uranium enrichment and related activities or face the prospect of sanctions. The draft passed by a vote of 14–1 (Qatar, which represents Arab states on the council, opposing). The same day, Iran's U.N. Ambassador Javad Zarif qualified the resolution as "arbitrary" and illegal because the NTP protocol explicitly guarantees under international law Iran's right to pursue nuclear activities for peaceful purposes. In response to today's vote at the UN, Iranian President Mahmoud Ahmadinejad said that his country will revise his position vis-à-vis the economic/incentive package offered previously by the G-6 (5 permanent Security council  members plus Germany.) In December 2006, the Gulf Cooperation Council called for a nuclear weapons free Middle East and recognition of the right of a country to expertise in the field of nuclear energy for peaceful purposes. Non-Aligned Movement. The Non-Aligned Movement has said that the present situation whereby Nuclear Weapon States monopolise the right to possess nuclear weapons is "highly discriminatory", and they have pushed for steps to accelerate the process of nuclear disarmament. On 16 September 2006 in Havana, Cuba, all of the 118 Non-Aligned Movement member countries, at the summit level, declared supporting Iran 's nuclear program for civilian purposes in their final written statement. That is a clear majority of the 192 countries comprising the entire United Nations, which comprise 55% of the world population. On 11 September 2007 the Non-Aligned Movement rejected any "interference" in Iran's nuclear transparency deal with U.N. inspectors by Western countries through the UN Security Council. On 30 July 2008 the Non-Aligned Movement welcomed the continuing cooperation of Iran with the IAEA and reaffirmed Iran's right to the peaceful uses of nuclear technology. The movement further called for the establishment of a nuclear weapons  free zone in the Middle East and called for a comprehensive multilaterally negotiated instrument which prohibits threats of attacks on nuclear facilities devoted to peaceful uses of nuclear energy. Biological weapons. Iran ratified the Biological Weapons Convention on 22 August 1973. Iran has advanced biology and genetic engineering research programs supporting an industry that produces world-class vaccines for both domestic use and export. The dual-use nature of these facilities means that Iran, like any country with advanced biological research programs, could easily produce biological warfare agents. A 2005 report from the United States Department of State claimed that  Iran began work on offensive biological weapons during the Iran–Iraq War, and that their large legitimate bio-technological and bio-medical industry "could easily hide pilot to industrial-scale production capabilities for a potential BW program, and could mask procurement of BW-related process equipment". The report further said that "available information about Iranian activities indicates a maturing offensive program with a rapidly evolving capability that may soon include the ability to deliver these weapons by a variety of means". According to the Nuclear Threat Initiative, Iran is known to possess cultures of the many biological agents for legitimate  scientific purposes which have been weaponised by other nations in the past, or could theoretically be weaponised. Although they do not allege that Iran has attempted to weaponise them, Iran possesses sufficient biological facilities to potentially do so. Chemical weapons. Iran has experienced attack by chemical warfare (CW) on the battlefield and suffered hundreds of thousands of casualties, both civilian and military, in such attacks during the 1980–88 Iran–Iraq War. Iran was completely unprepared for chemical warfare and did not even have sufficient gas masks for its troops. Due to sanctions, Iran had to purchase gas masks from North  Korea or commercial painting respirator masks bought from the West. Iran is not known to have resorted to using chemical weapons in retaliation for Iraqi chemical weapons attacks during the Iran–Iraq War despite the fact it would have been legally entitled to do so under the then-existing international treaties on the use of chemical weapons which only prohibited the first use of such weapons. Still Iran did develop a chemical-weapons-program during the latter part of that war, and in 1989, "The New York Times" reported that Iran started a major campaign to produce and stockpile chemical  weapons after a truce was agreed with Iraq. On 13 January 1993 Iran signed the Chemical Weapons Convention and ratified it on 3 November 1997. In the official declaration submitted to OPCW Iranian government acknowledged that it had developed a chemical-weapons-program in the 1980s but asserted that it had since ceased the program and destroyed the stockpiles of operational weapons. In an interview with Gareth Porter, Mohsen Rafighdoost, the Minister of the Islamic Revolutionary Guard Corps throughout the eight-year Iran-Iraq war, described how supreme leader Ayatollah Khomeini had twice blocked his proposal to begin working on  both nuclear and chemical weapons to counter Iraqi chemical attacks, which Rafighdoost interpreted as a fatwa against their use and production, because it was issued by the "guardian jurist". A U.S. Central Intelligence Agency report dated January 2001 speculated that Iran had manufactured and stockpiled chemical weapons – including blister, blood, choking, and probably nerve agents, and the bombs and artillery shells to deliver them. It further claimed that during the first half of 2001, Iran continued to seek production technology, training, expertise, equipment, and chemicals from entities in Russia and China that could be used to help Iran reach its  goal of having indigenous nerve agent production capability. However the certainty of this assessment declined and in 2007 the U.S. Defense Intelligence Agency limited its public assessment to just noting that "Iran has a large and growing commercial chemical industry that could be used to support a chemical agent mobilization capability." Iran is a signatory of the Chemical Weapons Convention, which bans chemical weapons, delivery systems, and production facilities. Iran has reiterated its commitment to the CWC and its full support for the work of the OPCW, in particular in view of the considerable suffering these weapons have caused to  the Iranian people. Iran has not made any declaration of a weapons stockpile under the treaty. In 2013 Ahmet Uzumcu, the Director-General of the OPCW, hailed Iran as an effective and active member-state of the OPCW. In 2016 Iranian chemists synthesised five Novichok nerve agents, originally developed in the Soviet Union, for analysis and produced detailed mass spectral data which was added to the OPCW Central Analytical Database. Previously there had been no detailed descriptions of their spectral properties in open scientific literature. Delivery systems. Missiles. A Shahab-4 with a range of 2,000 km and a payload of  1,000 kg is believed to be under development. Iran has stated the Shahab-3 is the last of its war missiles and the Shahab-4 is being developed to give the country the capability of launching communications and surveillance satellites. A Shahab-5, an intercontinental ballistic missile with a 10,000 km range, has been alleged but not proven to be under development. In 2017, Iran tested the Khorramshahr, an MRBM that can carry an 1800 kg payload over 2000 km. Iran has 12 X-55 long range cruise missiles purchased without nuclear warheads from Ukraine in 2001. The X-55 has a range of 2,500  to 3,000 kilometers. Iran's most advanced missile, the Fajr-3, has an unknown range but is estimated to be 2,500 km. The missile is radar evading and can strike targets simultaneously using multiple warheads. On 2 November 2006, Iran fired unarmed missiles to begin 10 days of military war games. Iranian state television reported "dozens of missiles were fired including Shahab-2 and Shahab-3 missiles. The missiles had ranges from 300 km to up to 2,000 km...Iranian experts have made some changes to Shahab-3 missiles installing cluster warheads in them with the capacity to carry 1,400 bombs." These launches come  after some United States-led military exercises in the Persian Gulf on 30 October 2006, meant to train for blocking the transport of weapons of mass destruction. The Sejil is a two-stage, solid-propellant, surface-to-surface missile (SSM) produced by Iran with a reported 1,930 km (1,200 mi) range. A successful test launch took place on 12 November 2008. According to Jane's Information Group, details of the design other than the number of stages and that it uses solid fuel have not been released. Uzi Ruben, former director of Israel's Ballistic Missile Defense Organization, indicated that , "Unlike other Iranian missiles, the Sajil bears no resemblance to any North Korean, Russian, Chinese or Pakistani (missile technology). It demonstrates a significant leap in Iran's missile capabilities." Ruben went on to state that the Sejil-1 " ... places Iran in the realm of multiple-stage missiles, which means that they are on the way to having intercontinental ballistic missile (ICBM) capabilities ..." As a weapon, the Sejil-1 presents much more challenge to Iran's potential enemies, as solid-fuel missiles can be launched with much less notice than liquid-fueled missiles, making them more difficult to strike prior to launch. Sejil-2  is an upgraded version of the Sejil. The Sejil-2 two-stage solid-fuel missile has a 2,000 km range and was first test fired on 20 May 2009. The Sejil-2 surface-to-surface medium-range ballistic missile (MRBM) was first tested eight months prior to the actual test launch, which took place in the central Iranian province of Semnan. Improvements include better navigation system, better targeting system, more payload, longer range, faster lift-off, longer storage time, quicker launch, and lower detection possibility. Aircraft. Any aircraft could potentially be used to host some form of WMD distribution system. Iran has  a varied air force with aircraft purchased from many countries, including the United States. Due to sanctions, the Iranian government has encouraged the domestic production of aircraft and, since 2002, has built its own transport aircraft, fighters, and gunship helicopters.