who has signed the nuclear non proliferation treaty
Treaty on the Non-Proliferation of Nuclear Weapons Opened for signature in 1968, the treaty entered into force in 1970. As required by the text, after twenty-five years, NPT Parties met in May 1995 and agreed to extend the treaty indefinitely.[3] More countries have adhered to the NPT than any other arms limitation and disarmament agreement, a testament to the treaty's significance.[2] As of August 2016, 191 states have adhered to the treaty, though North Korea, which acceded in 1985 but never came into compliance, announced its withdrawal from the NPT in 2003, following detonation of nuclear devices in violation of core obligations.[4] Four UN member states have never accepted the NPT, three of which are thought to possess nuclear weapons: India, Israel, and Pakistan. In addition, South Sudan, founded in 2011, has not joined.
2017 Nobel Peace Prize The 2017 Nobel Peace Prize was awarded to the International Campaign to Abolish Nuclear Weapons (ICAN) "for its work to draw attention to the catastrophic humanitarian consequences of any use of nuclear weapons and for its ground-breaking efforts to achieve a treaty-based prohibition on such weapons," according to the Norwegian Nobel Committee announcement on October 6, 2017.[1] The award announcement acknowledged the fact that "the world's nine nuclear-armed powers and their allies" neither signed nor supported the treaty-based prohibition known as the Treaty on the Prohibition of Nuclear Weapons or nuclear ban treaty, yet in an interview Committee Chair Berit Reiss-Andersen told reporters that the award was intended to give "encouragement to all players in the field" to disarm.[2] The award was hailed by civil society as well as governmental and intergovernmental representatives who support the nuclear ban treaty, but drew criticism from those opposed. At the Nobel Peace Prize award ceremony held in Oslo City Hall on December 10, 2017, Setsuko Thurlow, an 85-year-old survivor of the 1945 atomic bombing of Hiroshima, and ICAN Executive Director Beatrice Fihn jointly received a medal and diploma of the award on behalf of ICAN and delivered the Nobel lecture.[3]