Russia has pledged to destroy all 40,000 metric tons of its stockpile, the world's largest, by Dec. 31, 2015, RIA Novosti reported Sunday. About 25,000 metric tons of chemical weapons have already been destroyed.
The 188 countries that joined the convention had initially planned to rid the world of all chemical weapons by 2012, but both Russia and the United States asked for an extension.
The United States has destroyed about 90 percent of its weapons, RIA Novosti reported. As of Jan. 31, 73 percent of the global stockpile had been eliminated.
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