On Wednesday, the US State Department accused Russia of having used a chemical weapon against Ukrainian forces, which violates the Chemical Weapons Convention, while also announcing new sanctions against Moscow. The sanctions are to penalize companies that assist Moscow in obtaining weaponry for its ongoing war with Ukraine. The sanctions also target Russian government agencies and companies involved in the country’s efforts to develop chemical and biological weapons. In a recently released factsheet, the State Department said that Russia also used riot control agents (tear gas) as a method of…