Gas masks were issued to all children as a precaution ... breathe normally. Many wartime children have subsequently admitted that they struggled to take the drill seriously and that their masks ...

including the evacuation of children and the distribution of gas masks. The beginning of the BBC's wartime role, which involved a massive change to programming, is covered in this collection.

Another war blogger, who uses the alias Two Majors ... photos of what they said were special forces operatives, wearing gas masks and moving along what looked like the inside of a large pipe.

On April 22 1915, a greenish fog drifted over the battlefield north of Ypres in Belgium, choking to death some 5,000 French soldiers and heralding a new type of ...

Another war blogger, who uses the alias Two Majors ... photos of what they said were special forces operatives, wearing gas masks and moving along what looked like the inside of a large pipe.

Another war blogger, who uses the alias Two Majors ... photos of what they said were special forces operatives, wearing gas masks and moving along what looked like the inside of a large pipe.