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A history of chemical weapons in Syria - Yahoo

The horror of the gas attacks during World War I led to the 1925 Geneva Protocol, which banned the use of chemical and biological weapons in war. The OPCW was formed in 1997 to implement the Chemical Weapons Convention, an international treaty against the use, development, production, stockpiling and transfer of chemical weapons and their precursors. Any chemical used for warfare is deemed a chemical weapon by the convention. All states who have signed the treaty have agreed to chemically disarm by destroying any of their stockpiles of chemical weapons, as well as any facilities that produce them. As of March 2016, 192 states have signed and ratified the Chemical Weapons Convention. Israel has signed, but not ratified the treaty, while Egypt, North Korea and South Sudan have neither signed nor ratified the agreement, according to a fact sheet from the OPCW. Syria signed the Chemical Weapons Convention in 2013 and submitted to inspections and removal of what it said were stores of chemical weapons in 2014, though opposition groups maintained they had not given a full account. The OPCW says that nearly 95 percent of the world’s declared stockpile of chemical weapons have been destroyed under their verification.