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A PAROS treaty would build on the efforts of the 1967 Space Treaty to preserve the space of peaceful use, by requiring States Parties not to put objects carrying any type of weapon into orbit, to sow weapons on celestial bodies and to threaten to use violence against objects in space. The treaty requires the parties to use Antarctica only for peaceful purposes. Military activities are prohibited, including weapons testing, nuclear explosions and radioactive waste management in Antarctica. The CPPNM is the only legally binding international agreement that focuses on the physical protection of peacefully used nuclear materials. START I has limited the number of strategic vehicles and nuclear warheads. Start II completed the START I program by trying to set additional limits for strategic nuclear weapons for each party. The treaty prevents the placement of ABC weapons on the seabed and seabed in order to eliminate the possibility of an underwater arms race and to promote peaceful exploration of the waters. The Open Skies Treaty is an international agreement in which States Parties are allowed to conduct unarmed observation flights on the territory of other States Parties. The Non-Proliferation Treaty is a treaty that aims to limit the proliferation of nuclear weapons by the three pillars of non-proliferation, disarmament and the peaceful use of nuclear energy. The CFE Treaty concluded an agreement to reduce the possibility of larger offensive deployments in Europe by reducing troops and armaments in Central Europe. The treaty requires the United States and Russia to reduce and mutually limit strategic nuclear weapons, with each side reserving the right to determine the structure of its strategic offensive weapons. The CAC requires States Parties not to develop, manufacture, acquire, store or store, transfer, use or not to set up chemical weapons. It came into force in 1997.

Below is information on the disarmament, arms control and non-proliferation of weapons of mass destruction treaties, organizations and regimes. Information on each contract or organization includes relevant full text documents, country affiliations, an analytical chart and timeline that follow ongoing work and related developments. All entries are updated regularly, as the events warrant. This material was prepared by the James Martin Center for Nonproliferation Studies for the NTI website. The treaty prohibits the development, production, stockpiling or purchase of biological weapons and toxins and imposes the elimination of existing weapons, weapons production equipment and means of delivery. The Mendoza Agreement, signed in 1991, was an agreement between Argentina, Brazil and Chile, which never entered into force.