Haig planned to release chlorine ... the battles of World War One not only for its cost, but also for the conditions in which those casualties were incurred: The main attack went in over low ...

Islamic State fanatics returning to Britain could be plotting horrifying attacks using chlorine gas which killed thousands of troops during the First World War. The warning has been given by one ...

As a result, many soldiers removed their gas marks, exposing them to the clouds of chlorine ... Gas attacks were a new battle tactic used by both sides in World War One. They were effective ...