The Battle of Somme tarted on 1 July 1916 and finished, without any noticeable change in positions, on 18 November 1916. The Somme is a river in northern France and the Battle of the Somme took place around the river.On the first day, there were about 60,000 casualties in the British force and 20,000 of those died. More than one million people died, were wounded or went missing, in the battle. Today, it is considered the worst battle of the First World War, especially by Great Britain.The first day on the Somme was the bloodiest day in British military history. For five days before the first of July, the British army shot non-stop at the German trenches, to destroy their trenches and the barbed wire that was in front of them. 1.73 million bombs were dropped on the German trenches and 1/3 of them did not work, this was because many of theartillery and bombs were not made properly.There were many tactics introduced in this battle such as poisonous gas, used by the germans, usedchlorinegas to begin with but it gave off a strong smell but it was green so it could be easily seen by the enemy. The problem was that if the wind came up it blew back on the Germans and would weaken them.Rifles, Machine Guns, Tanks, Trenches and Mines were also used in this battle which were very influential on the rest of World War One.