From 25 September until 15 October 1915 the Battle of Loos was fought. It was the first genuinely large scale British offensive action but was in a supporting role to a larger French attack in the Third Battle of Artois. British appeals that the ground over which they were being called upon to advance was wholly unsuitable were rejected. The battle is historically noteworthy for the first British use of poison gas.
Also SeeLeslie J. Coulter
- http://www.longlongtrail.co.uk/battles/battles-of-the-western-front-in-france-and-flanders/the-battle-of-loos/, accessed 26 September 2016.