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Biological
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While Pakistan is not known to possess biological weapons, it has talented biomedical and biochemical scientists and well-equipped laboratories, which would allow it to quickly establish a sophisticated biological warfare (BW) program, should the government so desire. Indeed, the United States reported in 1996 that Islamabad had been "conducting research and development with potential BW applications." It is not known whether this potential has since been realized. Pakistan signed the Biological and Toxin Weapons Convention (BWC) in April 1972 and ratified it in 1974.
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While South Korea possesses a well-developed pharmaceutical and biotech infrastructure, there is no evidence that Seoul has an offensive biological weapon (BW) program. Citing a biological threat from North Korea, South Korea conducts defensive BW research and development, including the development of vaccines against anthrax and smallpox. South Korea ratified the Biological and Toxin Weapons Convention (BWC) in June 1987 and joined the Australia Group in October 1995.
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Chemical
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Pakistan signed the Chemical Weapons Convention (CWC) in 1993 and ratified the treaty in 1997. Islamabad has apparently made no admission in its treaty-mandated declarations of having possessed chemical weapons. Further, there is no reliable information in publicly available literature asserting that Pakistan has ever possessed chemical weapons, although some analysts suspect that it supports an offensive program.
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After ratifying the Chemical Weapons Convention (CWC) in April 1997, South Korea acknowledged possessing chemical weapons (CW) and one CW production facility. Although few details are publicly known, South Korea may store several hundreds of tons of CW munitions, including nerve agents. Pursuant to its CWC obligations, the South Korean military currently is devising methods to destroy CW munitions at a disposal site in Yongdong-kun, North Ch’ungch’ong Province.
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Missile
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Pakistan is developing both solid- and liquid-fueled ballistic missiles, based extensively on foreign systems. In the early 1990s, Pakistan purchased a small number of 300km-range M-11 ballistic missiles from China; Beijing also built a turnkey ballistic missile manufacturing facility at Tarwanah, a suburb of Rawalpindi. By the late 1990s, China helped Pakistan develop the 750km-range, solid-fueled Shaheen-1 ballistic missile, which was last tested in October 2002. In the late 1990s, Pakistan also acquired a small number of 1,500km-range Nodong ballistic missiles from North Korea. The Pakistani version of the Nodong, known as the Ghauri, was flight-tested in April 1998 and April 1999. The ballistic missiles are being developed by two rival agencies, the Pakistan Atomic Energy Commission and the Khan Research Laboratories, which fall under the aegis of the National Development Complex.
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In December 1971, South Korean President Park Chung Hee issued a directive to reverse-engineer the US Nike Hercules air defense missile, a system that can also be used in a surface-to-surface role. Following several failures, South Korea's first successful test of its own version, known as "Paekkom," was conducted in September 1978. In 1979, South Korea entered into a bilateral agreement with the United States that limited South Korean ballistic missiles to a range of 180km with a 500kg payload. The Paekkom program was slashed in December 1982, but was restored in late 1983; an improved version of the Paekkom, called the "Hyonmu," was subsequently developed. South Korea joined the Missile Technology Control Regime (MTCR) in March 2001; membership in the organization supersedes the missile-range agreement concluded earlier with Washington. In January 2002, South Korea announced procurement of the 300km-range Army Tactical Missile System (ATACMS) from the United States; South Korea will buy 110 ATACMS by 2004. Seoul is also developing a space launch vehicle with a plan to place a small satellite into low-earth orbit in 2005.
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Nuclear
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In the mid-1970s, Pakistan embarked upon the uranium enrichment route to acquiring a nuclear weapons capability. By the mid-1980s, Pakistan had a clandestine uranium enrichment facility; and as early as 1989-1990, the United States concluded that Islamabad had acquired the capability to assemble a first-generation nuclear device. Pakistan is believed to have stockpiled approximately 580-800kg of highly enriched uranium (HEU), sufficient amounts to build 30-50 fission bombs. In 1998, Pakistan commissioned the Khushab research reactor, which is capable of yielding 10-15kg of weapons-grade plutonium annually. According to the United States, China helped Pakistan by providing nuclear-related materials, scientific expertise, and technical assistance. Islamabad conducted nuclear tests in May 1998, shortly after India conducted its own weapon tests and declared itself a nuclear weapon state. Pakistan is not a signatory to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT).
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South Korea first became interested in nuclear technology in the 1950s but did not begin construction of its first power reactor until 1970. Changes in the international security environment influenced South Korea's decision to begin a nuclear weapons program in the early 1970s. Under significant pressure from the United States, Seoul abandoned the program and signed the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) in April 1975 before producing any fissile material. In November 1991, President Roh Tae Woo declared that South Korea would not "manufacture, possess, store, deploy, or use nuclear weapons." Two months later, North and South Korea signed the Joint Declaration on the Denuclearization of The Korean Peninsula. However, both sides have failed to implement its provision for a bilateral inspection regime. South Korea is an executive board member of the Korean Peninsula Energy Development Organization (KEDO) and is providing most of the financial support for the construction of two light water nuclear reactors in North Korea under the Agreed Framework. Seoul has 18 nuclear power reactors in use and two more under construction.
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Overview
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Pakistan embarked on a nuclear weapon program in the early 1970s after its defeat and break up in the Indo-Bangladesh war of 1971. Islamabad regards nuclear weapons as essential to safeguard the South Asian balance of power and offset its conventional inferiority and lack of strategic depth against India. The technological complexity associated with nuclear weapons and their systems of delivery is also closely tied to Pakistan's post-colonial identity as the first Muslim nation to have acquired such a capability. There is no reliable, publicly available information to suggest that Pakistan has biological or chemical weapons.
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South Korea has maintained a bilateral security alliance with the United States since the Korean War (1950-1953). Nevertheless, South Korea has an active ballistic missile program and acknowledges the possession of chemical weapons (CW). Seoul abandoned its nuclear weapons program in the 1970s but has the technical capacity to produce nuclear, as well as biological, weapons. South Korea is a signatory to several nonproliferation treaties and has adopted a policy of a "nuclear-free Korean peninsula."
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