children. Sri Lanka The Tamil Tigers of Sri Lanka, an insurgent group in Sri Lanka used CR gas against government forces that were on an offensive to flush and defeat these insurgents during September 2008. Its use hindered the army's progress but ultimately proved ineffective in preventing the army from overrunning their positions. This is one of the first few cases of insurgents using CR gas as an insurgent weapon. Turkey In the June 2013 protest against the Turkish government, Turkish police allegedly used CR gas on protesters in Istanbul. Doctors in a makeshift first aid post in a Mosque judged it as such. Ukraine In Ukraine, CR gas is commonly used by special forces against demonstrators. Gas is packed in a form of spray cans "Cobra 1". For example, gas has been used on demonstration dedicated to Ukraine Independence Day (Aug 24 2011). Also massive gas usage has been documented during demonstrations against Language Law Draft at Kiev on Jul 3-4 2012. Vietnam It has been reported that thousands of tons of CR gas were used by the U.S. forces in Vietnam to bring Viet Cong into the open. It was also used by the North Vietnamese forces in some battles like Hue in 1968 or during the Easter Offensive in 1972. See also CS gas Oxazepine Pepper spray Tear gas References Lachrymatory agents Riot control agents Dibenzoxazepines