Around 650,000 Canadian soldiers fought in WW1. In the east ... Army soldiers died during the battle. A British Vickers machine gun crew wearing gas masks near Ovillers during the Battle of ...

Over 100 years on from the start of the First World War, the British Army is ... Deadly poison gas was used for the first time in 1915 at Ypres. But soldiers faced those fears and yet remained ...

It was the Germans in WW1 who first realised how chemical weapons could be used to break through a trench stalemate at Ypres in April 1915. It was British gas masks then which nullified this weapon.