The use of the banned shells is prohibited for use in heavily populated civilian areas under international law UkraineWar Russia The use of the banned shells is prohibited for use in heavily populated civilian areas under international law but is allowed in open spaces for use as cover for troops .Oleksi Biloshytsky, head of police in Popasna, 95 kilometres west of Lugansk city, said that Russian forces had used the chemical weapon in his area.In a post on Facebook, he said : "It's what the Nazis called a ' flaming onion', and that's what the Russcists (an amalgamation of 'Russians'...